@Tracey ***********
if you are over 50 apply for a retirement visa online via the Thai Embassy. If you get the non-OA you need a criminal check and mandatory insurance from a restricted list of companies, so most people choose the non-O visa. For the non-O you need to show evidence of 800,000 baht each (about £19,000) in your account and be willing to transfer it to Thailand soon after arrival in Thailand. Whatever you do, don't come to Thailand without a visa as it's impossible to open a bank account in Thailand without paying an agent about 60,000 baht these days (it used to be possible). Good luck.