Bank of America review: Checking account

On 1/7/21, I used their Bill Pay service to issue a payment to Waste Management for $48.81, The next morning, I was horrified to see that they had processed it for $4881.00. I have called their checking support line 5 or six times in the 17 days since, each time being assured that it was being resolved, and it still is NOT! There are a bunch of NSF charges that they do seem to be able to fix, but I still have a negative balance - and an upcoming mortgage payment; I'm waiting until they do resolve it (assuming they will) before adding up the late fees I will expect them to compensate me for. I've had a checking account with them since 1982, but not much longer!