Believe me, it is even more frustrating for the company. Accepting payments is an incredibly hard problem, regardless of which payment processor you use. No ma

Believe me, it is even more frustrating for the company. Accepting payments is an incredibly hard problem, regardless of which payment processor you use. No matter how many tests you do, there is always a bank somewhere trying to include some second factor authorization (3DS, etc) in an iFrame that completely breaks but only in production. And when it breaks, it is often impossible to reproduce. Over my career, I have lost so many customers due to payment system failures... Words cannot describe the terrible punch in the gut feeling of getting a support email from a customer trying to give you money, but they can't.