Update Paystack.php

Author: engrtitus

src/Paystack.php

@@ -112,8 +112,9 @@ private function setRequestOptions()
     public function makePaymentRequest( $data = null)
     {
         if ( $data == null ) {
-            $data = [
-                "amount" => intval(request()->amount),
+           $quantity = intval(request()->quantity);
+             $data = [
+                "amount" => intval(request()->amount)*$quantity,
                 "reference" => request()->reference,
                 "email" => request()->email,
                 "plan" => request()->plan,