I think the number gets reused after a period of inactivity, I have a number on AIS that is prepaid, I have it on a minimal plan and just top it up as I visit 2-3 times a year, however on Some of the Apps, Lazada, Shopee, someone elses photo pops up, being the previous owner of the number. Can't seem to change it.
I am noticing that all sections of govt are seemingly more observant of the rules, with the digitisation and automation of passports, and visa exemption, lots more undesirable characters are turning up. It follows that hotels and others will be pushed to do the governments work on searching overstays.
Depending on age their are a number of Visa options, lots of people ask similar questions, scroll through this site and read more. It varies on age, length of stay, whether you want to work, being married to a Thai. Etc Spend an hour or two, list all the options, then download the official docs. Apparently their are certain treaties with the US that offer different options as well. And avoid using an agent. Good luck
As an old guy my advice is as it stands you have no hope, if you are really desperate you may try to get ESL teaching qualifications and get some Micky mouse school to sponsor you, but at the end of the day unless you crack it as a YouTuber or something like that(and there is already a million of them), it will be hard for you to live and work here. Thailands immigration rules are strict and while the government is tinkling around the edges with longer stay visa's they are also cracking down on foreigners abusing their systems.
It's lodged online, do it yourself, for his address and save it so you can show them at immigration, I've seen backpackers turn up with the name of a hostel in Khao San Rd written on a piece of paper and get an extension
This doesnt affect me as I am Australian, but In Australia, as soon as we hop on a plane, Social Security get notified via passport ID, and we have 6 weeks to get back before several allowances are discontinued, we have to reapply for some. I thought UK would react in the same way, regardless of your banking arrangements.
So how are you going to convince the immigration officer at the border on the way back in, that even though you applied for your visa outside Thai, their computer records show you were actually in Thailand. Given the numbers getting turned away at the border, I wouldn't touch that
My wife and I, both in our 70's have Macquarie platinum credit card, it comes with travel insurance as long as you book and pay with the card. It provides very good cover, last year my wife tripped and fell in BKK. Covered all medical and upgraded travel back to Australia. And the annual cost of the card was less than a quote for travel insurance my son got