Well she is liable for a fine if she doesn’t get to know it fast. She is supposed to report it within 24 hours of you moving in. Can all be done online by her with a copy of your passport and landing card.
You know there is a branch of Bangkok bank in London. Open an account there. Otherwise, use Wise and transfer from your U.K. bank account to Thai bank… Instant transfers.
yea Pattaya is the hardest most awkward immigration centre in all of Thailand. They have backhander deals with the visa agents. I would suggest either have a little holiday to Phuket or use an agent, in the future.