I knew I wasn't alone in this issue when the branch manager said they couldn't afford to reimburse me.We had the same issue.. Came back from vacation to about all our bills bouncing. They paid back all the fees.... Then it happened again the next month ... they paid the fees AND that month's mortgage payment for the inconvenience. They said that somehow the system created a duplicate account and they couldn't delete it, so they changed the payment to 0.... For several years we 2 mortgages.
From what I recall, I was clear that if we couldn't resolve the issue, my next stop was small claims court and he said, "Do what you have to do." So, I did.