Doesn't matter how big the waiting list gets they still see too the life treating ones first.
Shortages of doctors nurses etc etc.
My daughter is a paramedic and is working 7 days a week at 12 hour shifts instead of what's supposed to be 5 day working week.
The NHS management is what she would describe as deleted deleted.
I would guess so if he still has any problems with the certified proof his gets in UK and it is not translated to Thai correctly.
My Thai wife changed her name to my surname at marriage and got things changed over OK I don't see why it will be a problem for your friend if he has cerfied proof.
"Start car and have to pump brake pedal to get any brakes", you can believe me if you wish but that means take the car to a workshop and get the brakes fixed asap.
I would say bring proof of UK name change, maybe a confirmation letter from UK embassy.
Get Thai translations and photocopies, get new Thai driving licences and change name at the bank.
Yes as i have said that's why a UK photocard driving licence doesn't need an IDP all information on the UK DL is in English.
A copy of the UK DL and a copy of your passport and passport entry stamp page is all you need to drive around Thailand.
Even then my 3 sons and 1 of my daughters have never needed to show the copies to anyone when they come holiday here and drive everywhere over some 17 years.
Exactly hence the question and why the UK photocard Driving licence let's you drive in Thailand legally without an IDP.
Not know of any other countries DL's that are able to do the same.
Also in Sukhothai DLT you can get a Thai DL without an IDP.