in my personal opinion, nowadays, consider the Thai government's Board of Investment (BOI) LTR Visa (Long–Term Resident Visa) as the better and cheaper Thai Visa to consider vs. Thailand Privilege Visa
* All applicants must be residing within the UK/Ireland/UK territories when apply for the Visa. The Royal Thai Embassy has the right to cancel the visa applications should you fail to provide the evidence of your presence within the UK/Ireland/UK territories while applying for the visa.
Payment in Cash Thai Baht, but, the Thai Immigration Officers on Departure at Suvarnabhumi Airport are installing Bank Card EDC Terminals to accept Bank Cards, but dunno if currently in use or not
Yes, because, again, the E–Visa PDF File is the Thai Visa, and, yes, there is the old Passport Book # on it, but ANY Thai Embassy/Thai Consulate cannot go back and edit/amend the Passport Book # in the Thai eVisa website System, so, for most countries, you're just left with providing a photocopy of thr Photo Page of the OLD Passport Book....
There are a few countries where in a new or replacement subsequent Passport Book, some countries will print the Passport Book # of the previous, old Book, into the new Passport Book, but Canada does not do that....
the Thai Embassy in Tokyo and Thai Consulates in Osaka or Fukuoka are notorious and quite a few field reports (even here in this Facebook Group) that applied and paid for a DTV E–Visa, but did NOT receive a DTV E–Visa and got something else, whether Multiple Entry Tourist E–Visa or Non–O Multiple Entry E–Visa....
Buyer Beware in Japan and just apply for a Thai DTV E–Visa somewhere else besides Japan....