I had so much trouble opening a bank account in Bangkok last year.
Some wanted a work permit which I hadn’t received at the time, others wanted a letter from my embassy to say that my passport was real (I’m serious),others wanted 3months of payslips. I tried 9 different banks and branches and all gave me an excuse why I couldn’t open a bank account.
I ended up opening a bank account with Kbank in Pattaya (Royal Orchid mall on beach road). They ahve being excellent, the only downside is I have to pay 10bt for each transaction outside Pattaya..
Its funny that KBank in Bangkok did not want my money but Kbank in Pattaya had no issues.!
They will let you open a bank account on a tourist visa and the card you get will work that day. Give your guesthouse/hotel as your address. The internet banking takes about a week and you can change the address online.
No problem with international transfers, takes about 4days.
The only issue you might run into is if your passport is not EU or USA