OJAS

Given the statement in the OP that "they are doing their 90 days at the imm office", I think that we can safely take it that TM30's have already been completed and filed in their case.

Especially to those of us who, like myself, don't have a UK postcode these days!

Yep, I believe that the standard procedure nowadays after renewing your passport is to notify both your bank and SIM card provider of the new passport number.

I was able to get my local AIS shop do the necessary (a process which, surprisingly, only took them 5 minutes!). But you're right, your SIM registration will need to be updated again following your next passport renewal. That after you've made a trip to your bank to update your account with the new passport number!

https://aseannow.com/topic/1359645-does-your-sim-registration-and-bank-details-match/ Looks like a fair few are now being caught out (not surprisingly, I think).

Trouble, though, is that the foreign financial insitutions referred to by @oldcpu might include a bank back in your home country with whom you still hold an account. It is possible (if not likely?) that failure to comply would result in them closing this account, with all the problems which that might then cause you.

Assuming that your SP payments are normally credited to your Bangkok Bank account on Fridays, please be aware that the next public holiday in LOS on a Friday will fall on 5 December (Rama IX Birthday + Father's Day).

Might those of us returning permanently from Thailand to live in the UK count as "one-in's" to keep the riff-raff out? 😆

I agree with you that Thailand Post do appear to be the principal culprits in your case. However, the delay in your receiving the latest life cert request has probably also been compounded by DWP's apparently over-riding obsession with issuing such requests at the bare minimum postal cost to themselves (through using some 10th class mailing service, as it were). For the future, I can only suggest that you look out for reports on here of upcoming exercises relating to Thailand, and then jump into action on the basis of the templates downloadable via the following link: https://assets.publishing.service.gov.uk/media/67160776e94bb9726918ee90/Life_Certificate.pdf This is what I did in the case of the latest exercise a few months ago, with the result that my fresh life cert was received at Wolverhampton on 29 January, which was nearly a whole month before the DWP correspondence finally turned up in our mailbox here on 25 February!

Equally likely, I would have thought, is the possibility that their pals in the Immigration Bureau are so insistent for annual extension of stay reasons in the case of those using the 40k (marriage) or 65k (retirement) monthly income method.

Visas issued by practically every other country on this great planet of ours generally mean what they say on the tin: namely, that you can enter the country from Date A but have to leave by Date B. In Thailand, however, we have instead a convoluted system whereby visas are used to enter the country on the basis of permissions to stay granted by immigration officers regardless of the individual validity periods of said visas.

We can live in hope that you will refrain from continuing to flog a dead horse.

So only holders of unexpired non-immigrant visas of the OA variety then. These are the only one-year visas that I'm aware of.

A sweeping statement not borne, thus far, out of facts, I think.

If it's an occupational government pension (Civil Service, military, police, NHS, etc), it will be covered by the UK/Thailand DTA and, hence, not assessable for taxation purposes in LOS. However, I think it more likely, from the what the OP has said, to be the UK State Pension which is not explicitly referred to in the DTA and so, erring on the side of caution, should arguably be treated as assessable income. And then there is the issue of the income he is apparently earning from online work locally, which might, in itself, justify the need for a TIN in his case in any event.