Thank you James. Yes I called them several times, only NON O SINGLE ENTRY is available. They told me to go to Thai Embassy in Paris if I want à NON OA RETIREMENT.
Tod Daniels you completely right but the problem is the Immigration officer. Even you have all the documents and follow the rules, you can be reject. I think immigration must clarify the rules about visa exemption and tourist visa. Example: no more than 1 or 2 tourist visa per year...