diff --git a/app/controllers/discourse_donations/charges_controller.rb b/app/controllers/discourse_donations/charges_controller.rb
index f558cb4..333c6b4 100644
--- a/app/controllers/discourse_donations/charges_controller.rb
+++ b/app/controllers/discourse_donations/charges_controller.rb
@@ -7,23 +7,23 @@ module DiscourseDonations
     skip_before_filter :verify_authenticity_token, only: [:create]
 
     def create
-      if email.nil? || email.empty?
-        response = {}
+      if email.present?
+        payment = DiscourseDonations::Stripe.new(secret_key, stripe_options)
+        response = payment.charge(email, params)
       else
-        Stripe.api_key = SiteSetting.discourse_donations_secret_key
-        currency = SiteSetting.discourse_donations_currency
+        response = {}
+      end
 
-        customer = Stripe::Customer.create(
-         :email => email,
-         :source  => params[:stripeToken]
-        )
+      response['rewards'] = []
 
-        response = Stripe::Charge.create(
-          :customer    => customer.id,
-          :amount      => params[:amount],
-          :description => SiteSetting.discourse_donations_description,
-          :currency    => currency
-        )
+      if reward_user?(payment)
+        reward = DiscourseDonations::Rewards.new(current_user)
+        if reward.add_to_group(group_name)
+          response['rewards'] << { type: :group, name: group_name }
+        end
+        if reward.grant_badge(badge_name)
+          response['rewards'] << { type: :badge, name: badge_name }
+        end
       end
 
       render :json => response
@@ -31,6 +31,29 @@ module DiscourseDonations
 
     private
 
+    def reward_user?(payment)
+      payment.present? && payment.successful? && current_user.present?
+    end
+
+    def group_name
+      SiteSetting.discourse_donations_reward_group_name
+    end
+
+    def badge_name
+      SiteSetting.discourse_donations_reward_badge_name
+    end
+
+    def secret_key
+      SiteSetting.discourse_donations_secret_key
+    end
+
+    def stripe_options
+      {
+        description: SiteSetting.discourse_donations_description,
+        currency: SiteSetting.discourse_donations_currency
+      }
+    end
+
     def email
       params[:email] || current_user.try(:email)
     end
diff --git a/app/services/discourse_donations/rewards.rb b/app/services/discourse_donations/rewards.rb
new file mode 100644
index 0000000..a901dd3
--- /dev/null
+++ b/app/services/discourse_donations/rewards.rb
@@ -0,0 +1,29 @@
+
+
+module DiscourseDonations
+  class Rewards
+    attr_reader :user
+
+    def initialize(user)
+      @user = user
+    end
+
+    def add_to_group(name)
+      grp = ::Group.find_by_name(name)
+      return if grp.nil?
+      log_group_add(grp)
+      grp.add(user)
+    end
+
+    def grant_badge(name)
+      badge = ::Badge.find_by_name(name)
+      return if badge.nil?
+      BadgeGranter.grant(badge, user)
+    end
+
+    def log_group_add(grp)
+      system_user = User.find(-1)
+      GroupActionLogger.new(system_user, grp).log_add_user_to_group(user)
+    end
+  end
+end
diff --git a/app/services/discourse_donations/stripe.rb b/app/services/discourse_donations/stripe.rb
new file mode 100644
index 0000000..a8e4fa4
--- /dev/null
+++ b/app/services/discourse_donations/stripe.rb
@@ -0,0 +1,29 @@
+
+module DiscourseDonations
+  class Stripe
+    def initialize(secret_key, opts)
+      ::Stripe.api_key = secret_key
+      @description = opts[:description]
+      @currency = opts[:currency]
+    end
+
+    def charge(email, opts)
+      customer = ::Stripe::Customer.create(
+        email: email,
+        source: opts[:stripeToken]
+      )
+      @charge = ::Stripe::Charge.create(
+        customer: customer.id,
+        amount: opts[:amount],
+        description: @description,
+        currency: @currency
+      )
+      @charge[:message] = @charge[:outcome][:seller_message] if @charge[:outcome]
+      @charge
+    end
+
+    def successful?
+      @charge[:paid]
+    end
+  end
+end
diff --git a/config/locales/server.en.yml b/config/locales/server.en.yml
index a1013db..875b019 100644
--- a/config/locales/server.en.yml
+++ b/config/locales/server.en.yml
@@ -5,3 +5,5 @@ en:
     discourse_donations_public_key: Stripe Public Key
     discourse_donations_currency: Currency Code
     discourse_donations_hide_zip_code: Hide Zip Code
+    discourse_donations_reward_badge_name: Grant this badge to user when a payment is successful
+    discourse_donations_reward_group_name: Add the user to this group when a payment is successful
diff --git a/config/settings.yml b/config/settings.yml
index bbf80c2..4ef3212 100644
--- a/config/settings.yml
+++ b/config/settings.yml
@@ -15,3 +15,9 @@ plugins:
   discourse_donations_hide_zip_code:
     default: true
     client: true
+  discourse_donations_reward_badge_name:
+    client: false
+    default: 'Donation'
+  discourse_donations_reward_group_name:
+    client: false
+    default: 'Donation'
diff --git a/plugin.rb b/plugin.rb
index 8cd7b4a..a460a8b 100644
--- a/plugin.rb
+++ b/plugin.rb
@@ -4,7 +4,7 @@
 # url: https://github.com/choiceaustralia/discourse-donations
 # authors: Rimian Perkins
 
-gem 'stripe', '2.1.0'
+gem 'stripe', '2.4.0'
 
 load File.expand_path('../lib/discourse_donations/engine.rb', __FILE__)
 
diff --git a/spec/controllers/discourse_donations/charges_controller_spec.rb b/spec/controllers/discourse_donations/charges_controller_spec.rb
index 9d01873..7ac9c98 100644
--- a/spec/controllers/discourse_donations/charges_controller_spec.rb
+++ b/spec/controllers/discourse_donations/charges_controller_spec.rb
@@ -7,6 +7,8 @@ module DiscourseDonations
 
     before do
       SiteSetting.stubs(:discourse_donations_secret_key).returns('secret-key-yo')
+      SiteSetting.stubs(:discourse_donations_description).returns('charity begins at discourse plugin')
+      SiteSetting.stubs(:discourse_donations_currency).returns('AUD')
     end
 
     it 'responds ok for anonymous users' do
@@ -24,5 +26,36 @@ module DiscourseDonations
       post :create
       expect(response).to have_http_status(200)
     end
+
+    describe 'rewards' do
+      let(:group_name) { 'Zasch' }
+      let(:badge_name) { 'Beanie' }
+      let(:response_rewards) { JSON.parse(response.body)['rewards'] }
+      let(:stripe) { ::Stripe::Charge }
+
+      before do
+        SiteSetting.stubs(:discourse_donations_reward_group_name).returns(group_name)
+        SiteSetting.stubs(:discourse_donations_reward_badge_name).returns(badge_name)
+        Fabricate(:group, name: SiteSetting.discourse_donations_reward_group_name)
+        Fabricate(:badge, name: SiteSetting.discourse_donations_reward_badge_name)
+        log_in :coding_horror
+      end
+
+      it 'has no rewards' do
+        stripe.expects(:create).returns({ outcome: { seller_message: 'bummer' } })
+        post :create
+        expect(response_rewards).to be_empty
+      end
+
+      it 'awards a group' do
+        post :create
+        expect(response_rewards).to include({'type' => 'group', 'name' => group_name})
+      end
+
+      it 'awards a badge' do
+        post :create
+        expect(response_rewards).to include({'type' => 'badge', 'name' => badge_name})
+      end
+    end
   end
 end
diff --git a/spec/services/discourse_donations/rewards_spec.rb b/spec/services/discourse_donations/rewards_spec.rb
new file mode 100644
index 0000000..9daa820
--- /dev/null
+++ b/spec/services/discourse_donations/rewards_spec.rb
@@ -0,0 +1,39 @@
+require 'rails_helper'
+
+module DiscourseDonations
+  RSpec.describe DiscourseDonations::Rewards do
+    let(:grp) { Fabricate(:group) }
+    let(:user) { Fabricate(:user) }
+    subject { described_class.new(user) }
+
+    it 'adds the user to a group' do
+      Group.expects(:find_by_name).with(grp.name).returns(grp)
+      grp.expects(:add).with(user)
+      subject.expects(:log_group_add).once
+      subject.add_to_group(grp.name)
+    end
+
+    it 'does not add the user to a group' do
+      Group.expects(:find_by_name).with(grp.name).returns(nil)
+      grp.expects(:add).never
+      subject.expects(:log_group_add).never
+      expect(subject.add_to_group(grp.name)).to be_falsy
+    end
+
+    it 'logs the group add' do
+      GroupActionLogger.any_instance.expects(:log_add_user_to_group)
+      subject.add_to_group(grp.name)
+    end
+
+    it 'grants the user a badge' do
+      badge = Fabricate(:badge)
+      BadgeGranter.expects(:grant).with(badge, user)
+      subject.grant_badge(badge.name)
+    end
+
+    it 'does not grant the user a badge' do
+      BadgeGranter.expects(:grant).never
+      expect(subject.grant_badge('does not exist')).to be_falsy
+    end
+  end
+end
diff --git a/spec/services/discourse_donations/stripe_spec.rb b/spec/services/discourse_donations/stripe_spec.rb
new file mode 100644
index 0000000..cc7f30c
--- /dev/null
+++ b/spec/services/discourse_donations/stripe_spec.rb
@@ -0,0 +1,64 @@
+require 'rails_helper'
+require_relative '../../support/dd_helper'
+
+module DiscourseDonations
+  RSpec.describe DiscourseDonations::Stripe do
+    before { SiteSetting.stubs(:discourse_donations_secret_key).returns('secret-key-yo') }
+
+    let(:stripe_options) { { description: 'hi there', currency: 'AUD' } }
+    let(:params) { { email: email, stripeToken: 'stripe-token', amount: '1234', other: 'redundant param' } }
+    let(:email) { 'ray-zintoast@example.com' }
+    let(:customer) { stub(id: 1) }
+    let!(:subject) { described_class.new('secret-key-yo', stripe_options) }
+
+    it 'sets the api key' do
+      expect(::Stripe.api_key).to eq 'secret-key-yo'
+    end
+
+    it 'creates a customer and charges them an amount' do
+      ::Stripe::Customer.expects(:create).with(
+        email: email,
+        source: 'stripe-token'
+      ).returns(customer)
+      ::Stripe::Charge.expects(:create).with(
+        customer: customer.id,
+        amount: params[:amount],
+        description: stripe_options[:description],
+        currency: stripe_options[:currency]
+      ).returns(
+        {
+          paid: true,
+          outcome: { seller_message: 'yay!' }
+        }
+      )
+      subject.charge(email, params)
+    end
+
+    it 'has a message' do
+      ::Stripe::Customer.expects(:create).returns(customer)
+      ::Stripe::Charge.expects(:create).returns({ outcome: { seller_message: 'yay!' } })
+      response = subject.charge(email, params)
+      expect(response[:message]).to eq 'yay!'
+    end
+
+    describe '.successful?' do
+      let(:charge_options) { { customer: customer.id, amount: params[:amount], description: stripe_options[:description], currency: stripe_options[:currency] } }
+
+      before do
+        ::Stripe::Customer.expects(:create).with(email: email, source: 'stripe-token').returns(customer)
+      end
+
+      it 'is successful' do
+        ::Stripe::Charge.expects(:create).with(charge_options).returns({paid: true})
+        subject.charge(email, params)
+        expect(subject).to be_successful
+      end
+
+      it 'is not successful' do
+        ::Stripe::Charge.expects(:create).with(charge_options).returns({paid: false})
+        subject.charge(email, params)
+        expect(subject).not_to be_successful
+      end
+    end
+  end
+end