the type of Visa is irrelevant. If you are in Thailand for more than 90 days you need to submit a report. Personally I have a non o Visa based on being over 50 with a 12 month extension. I think maybe there are a couple of Visa types that do not require 90 day reporting. Someone will no doubt post what they are.
They have no idea when you returned to Bangkok so as long as your tm30 is now up to date and stays that way until you extend you will have no issue. Do you do it on line?
It's not a question of moving your account. If you want a local account then you have to start all over again and its completely at the discretion of the branch you choose. Keep trying though as I had to apply 4 times at the same branch of BB before I got someone to say yes.