@Ruth ******
it's a lot easier then you think. Once you get the bank account open it's just photo copies for everything else. It's a little tedious, but when you get it all sorted it's amazing value . The first 15 months will cost you 3900 baht and 1900 baht for every coming year .
The TM 30 is a legal requirement by your hotel , landlord or friend as I understand it but you can always ask before you except the accommodation.
Ask them if they are happy to provide you with a TM30 a copy of there ID and copy of there blue book. As you have probably heard, opening a bank account is easier in bigger cities and most seem to have success in shopping malls for some strange reason 🙂