No replies to my many emails and cannot get through to the embassy in London by phone. Useless! We go to Hua Hin twice a year for 90 days at a time so I think my best option is to apply for a Retirement Visa as I have done so in the past.
Nationals of the United Kingdom and over 40 other countries are eligible to travel to Thailand, for tourism purpose, with the exemption of visa and are permitted to stay in Thailand for a period of not exceeding 30 days. Therefore, you do not need a visa.