@Yoohoo - I have never received a firm answer for any rejected payments. I have been given many different excuses by many different QuickBooks people.  The rejections always seemed to be at random.  The rejections randomly started in December (including an account that had been processing for months using the same bank account). However, I will tell you, cross my fingers this doesn't jinx my account, it has been 2 months since I have had a rejected transaction.