I think it doesn’t matter and it’s up to you . Nobody come to check if you train or not at the gym . But if you wish to start it later make sure that the gym would be ok . Not sure how the gym issue the paper for you but normally they will be time to start and end on the packages and on invitations letter to embassy would mention when you will start the gym which is not true 🤣
I have no idea but I think it’s scam . My friend is now in Jakarta apply online as well and it took him 5 business day to get approved , tomorrow he will fly back to Phuket .
If you wish to re - apply , you can do it but will pay again for visa fee here is the link he got approved.
I am not a Thai Visa Agent, nor am I associated with one. I work for a law firm that also owns a legitimate and successful Muay Thai gym, which is recognized for issuing DTV visas for Muay Thai training. While I am not an agent, my involvement in both businesses allows me to provide accurate information about the process.