neoark400 Posted July 16, 2015 Share Posted July 16, 2015 Hi Greetings, I have faced the prestashop problem with my webcash payment gateway. I also contacted my payment gateway developer he said not the webcash problem is the prestashop problem. When I checkout it show the error : Duplicate merchant reference number . and my developer said Kindly send new reference number for every order. How to send the new reference number? Link to comment Share on other sites More sharing options...
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