- first address is your current vn address (hotel)
- 2nd address is where your bills go. If you live in Thailand, put Thailand address. It's fine.
You can stay anywhere, including hostel.
- accomodation proof sounds good
- as long as your bank statement has at least 500k thb in it, I don't think the transactions matter. I had no issues applying for soft power in hcmc as unemployed