I just transfer using a credit or debit card (debit is faster and cheaper). Takes all of 30 seconds if it is a repeat transfer and the info is in the app. For some reason, it won't let me transfer to Cambodia, so I use World Remit for that.
I use Transferwise to transfer out of Thailand all the time. I use World Remit to send to Cambodia. I used Transferwise to send money to Kenya this morning.
Unless it is a very large amount, you are better off using an app like Transferwise. Otherwise, trip to the bank and at least a half-hour procedure. It's agony.