Good day! My wife and I will be on TG 320- KTM to BKK. We have about a 5 hour layover before we get on OZ 742 to ICN. We are flying biz class for both. My question is:

1) Can we access the TG International Biz lounge in BKK
2) If so, how do we book the free massages?

Thank you so much!