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Recently we had an issue where a merchant (we act as a service provider) had already refunded a transaction via the merchant portal then when attempting to refund it through our service we encountered error code 55.We had no other way to determine if...

Hello all, We operate as a service provider, rather than a single merchant. A lot of our merchants are not too tech savvy so asking them to generate a public key (we're switching almost all merchants to Accept.JS from AIM) is like pulling teeth most ...