app/services/tang/apply_customer_discount.rb in tang-0.2.0 vs app/services/tang/apply_customer_discount.rb in tang-0.2.1

@@ -9,10 +9,10 @@
 
           start = cu.discount.start.to_s
           start_timestamp = DateTime.strptime(start, '%s')
           customer.update(coupon: coupon, coupon_start: start_timestamp)
         rescue Stripe::StripeError => e
-          customer.errors[:base] << e.message
+          customer.errors.add(:base, :invalid, message: e.message)
         end
       end
 
       return customer
     end
\ No newline at end of file