Some of you may find the following helpful:
When I tried to add a new 3rd party recipient to whom I wished to transfer funds, I was instructed to check my phone for a OTP and enter the OTP and the 3rd party's a/c number EXACTLY the same as the one showing up on my phone, onto the website.
After many failed attempts and receipt of continual error message "incorrect information, please ensure that you enter the recipient's a/c number EXACTLY as shown", I conceded defeat.
I took my laptop to my Bangkok bank branch on Jomtien second road, where the very kind security guard commenced inputting info' onto the bank's website. I watched him very closely as I needed to see where I was going wrong. It quickly became clear that the reason for my "failure" was that I had been entering the entire a/c number, whereas one only needs to enter THE LAST 3 CHARACTERS. Nowhere on the transfers screen was this mentioned, and I informed the bank of this anomaly using their messaging facility.
I should add that the aforementioned security guard has helped me with other problems in the past, saving me the hassle of queueing to see someone else. He is a very kind and helpful person, and is a great asset to the bank.