Updated Paypal Service

Author: navneetrai

composer.json

@@ -12,7 +12,7 @@
         }
     ],
     "require": {
-        "php": ">=5.4.0"
+        "php": ">=7.0"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.0",

src/Services/Paypal.php

@@ -46,7 +46,8 @@ public function complete(int $id, SubscriptionProductContract $product, Subscrip
 				'cmd'=>'_xclick-subscriptions', 
 				'a3'=>$product->getPrice(), 
 				'p3'=>$product->getFrequency(), 
-				't3'=>$recur
+				't3'=>$recur,
+				'src'=>1
 			]);
 
 			if($product->getDiscount() > 0){