We had another problem with braintree - due to some error on their side, they have submitted all of our AMEX transactions for settling twice. It took a lot of p

We had another problem with braintree - due to some error on their side, they have submitted all of our AMEX transactions for settling twice. It took a lot of phone calls to convince them that the problem was on their end, and after they "fixed" it, it happened again during the next billing cycle. They fixed it for good after it and we had no problems since then, but for a while there I was seriously considering ditching them for good. However, at the end of the day, they are still way better than PayPal - we had the common issue of having our account frozen...