I have sent money from Thailand with Wise just to test if it was possible. I don't recommend it as you cant send in THB and you will get a bad exchange rate. I paid in USD with a Thai debit card.
Still struggling to set up international transfers with SCB.. Endless paperwork. I think i now have to print some documents and bring them to a branch for approval. Have not got around to do that yet.
Tried the SCB app also which seemed straight forward, but it ended up being returned -the fee.. No idea what i did wrong.