Yesterday I received the Bank’s response to my angry letter. While not earth-shattering, it is I think a reasonable response, and a satisfactory one. It is to some extent a fairly standard reply, but it is nonetheless a personal one; I don’t expect to be fawned over, but this shows that someone has at least taken the time to read my letter and consider my concerns, and there is an apology (a genuinely sincere one - I think), which is the main thing I wanted. I’m placated enough to stop considering a change of bank, anyway.
I do, however, take the following with a pinch of salt:
With regard to the letter and document you received, the members of staff concerned have been made aware of the errors. The paperwork on our records has therefore been updated, which should avoid a similar occurrence happening in the future.
You can find the full response here.

Mmm, I agree, I think the apology IS genuine and they can see from your point of view. It also sounds like the member of staff who responded actually has some knowledge of the bank, always good to see! Hope it gets sorted without any more silly problems
hehe this good