             
             // Button
             let inviteButton = UIButton(frame: CGRect(x: 10, y: 265, width: (width/2)-20, height: 48.0))
-            inviteButton.backgroundColor = UIColor.protonDarkBlue()
+            inviteButton.backgroundColor = UIColor.clearColor()
+            inviteButton.layer.borderColor = UIColor.whiteColor().CGColor
+            inviteButton.layer.borderWidth = 1
             inviteButton.tintColor = UIColor(rgba: "#fff")
             inviteButton.setTitleColor(UIColor(rgba: "#fff"), forState: .Normal)
             inviteButton.titleLabel?.font = UIFont(name: "Helvetica", size: 14)

            
            // Button
            let subscribeButton = UIButton(frame: CGRect(x: width*0.5+10, y: 265, width: (width/2)-20, height: 50.0))
            subscribeButton.backgroundColor = UIColor.protonBlue()
            subscribeButton.setTitle("Become Customer", forState: .Normal)
            subscribeButton.setTitleColor(UIColor.whiteColor(), forState: .Normal)
            subscribeButton.titleLabel?.font = UIFont(name: "Helvetica", size: 14)

                case .Success:
                    if let value = response.result.value {
                        let json = JSON(value)
                        print("success in payment authorization")
                        print(PKPaymentAuthorizationStatus.Success)
                        completion(PKPaymentAuthorizationStatus.Success)
                        print(json)
