How can I regain access to my Bangkok Bank account from abroad after losing my Thai phone number?

Banks in south east Asia require you to present yourself in person.

A rule of thumb is to never keep any significant funds in there if you do not have a long term residency or a private banking client where you're considered a higher value customer and they assign you a dedicated account manager.

Or keep it in a country where you have citizenship.

If neither of the above options work for you, maybe self custody some crypto instead

OTP and Overseas Access

- OTP delivery: Bangkok Bank only sends one-time passwords (OTPs) to a Thai-registered mobile number. They don’t support sending OTPs to foreign numbers or email. If someone loses their Thai SIM, they effectively lose the ability to authenticate for mobile/internet banking.

- Locked accounts: If an account shows no activity for a long period (often a year or more), it can be flagged or restricted. Inactivity plus failed OTP verification usually results in being locked out.

- Resolution: The official stance is that the customer must visit a Bangkok Bank branch in Thailand to re-establish access, update their phone number, or reactivate the account. Remote resolution is extremely limited. (Ask AI)

When you come back here, go to your branch and sort it out.

thailand is stuck in the 90s, dont forget they still think bank books are to be taken seriously. As many have said, the only way to deal with this is go into a branch and wait and wait some more

email, might take a day or two to get back to you.

How did you loose your Thai phone number? I've had mine for over 6 years and been out of the country several times. I did have access to my banking app blocked because my new passport number was not registered with the phone company but the account was never closed. I had to attend in person to the branch I opened the account at with document from the phone company. There was no other way until I returned to Thailand.

Paid a 'company' a lot of money to get you a bank account? Schoolboy error. 🤣

If you say you lost your Thai phone number and that's the reason you can't log in, your account probably isn't closed. I wouldn't draw attention to yourself and having the DTV or it might end up closed. When you are next in Thailand, get a new Thai number and then you can try to get the account transferred onto that. There is a risk they will notice the DTV at that point and close but I have heard of other people who had success doing this and no comment was passed on the DTV.

Exact same situation , you have to go to that exact bank branch in Thailand . Not any branch . The exact one it was opened . Then you fill in a form that they post to Bangkok to change the phone number .

Try calling their help centre +6626455555..

They are not going to respond to emails nor unlock unless you come in person. Not sure it matters if you paid a third party a lot of money or not. The bank didn’t care about that.