I just want to display custom error messages, To achieve this, I want to pass a parameter as error codes, The gateway/callback file ends with this function; callback3DSecureRedirect($invoiceIdWhmcs, $
I just want to display custom error messages, To achieve this, I want to pass a parameter as error codes, The gateway/callback file ends with this function; callback3DSecureRedirect($invoiceIdWhmcs, $