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Development server returning this for all transactions, error code 57. We stopped charging cards for half an hour, tried again and got a couple to go through, but then all declined with this error again. I'm guessing it's some kind of system issue be...

Hello, every few months or so we seem to receive a blank response from one of our charge requests (submitted via curl, php). There does not appear to be any errors and the code continues on as if there was a response to parse, the response just seems...

Hello, we have received a notice from our bank that Visa wants settlement transactions to 'contain the "Product ID" received in authorization' and that we need to provide such information. I have searched the most recent documentation but cannot find...