Ive never had problem doing the same thing just make sure you have proof of award travel in case asked. As others on here will tell you, if you continue to enter without visa and immigration suspect you are living there without the proper visa they could stop you buy once or twice ove never had issue
yes I do plan to leave and travel to another country a couple of times but only after 90 days. I will extend my TR visa for another 30. But I do need to show some kind of leave thailand ticket after 60 right even if I don't intend to use it?
Ive never been asked but if my return ticket is with same airline then I guess they would already know. I've never been asked to show proof at immigration in Bangkok too, I just tell them when my return flight is if asked.