A few days before that, I visited the condo and saw the unit. The other day couldn't see it again as it had been rented for three months by somebody else by then
I did book a condo to live there from Jan 1st. Paid and got 1) a receipt for the money and 2) a signed paper with the basic clauses, signed by the owner
you can do that with the TrueMoney app. I'm using it. You can pay any QR code and also transfer to regular Thai bank accounts if you need to pay somebody, like a landlord or so.