@Sara ***********
They shouldn't have sold that visa to you :( You can stay for a maximum of 89 days per entry (which you already should know), but it is easy to get that one year extension of stay. Each immigration office is different, but generally you'll need the following:
1. Your passport and a copy of:
- Your data ("picture") page
- Your Non-O visa
- Your entry stamp
- Your departure card
2. Your husband PHYSICALLY next to you, and
- his ID card and a copy of her ID card
- his housebook [He'll know what it is], and a copy of the first page
3. The application form
4.. 2x passport pictures
5. 1,900 THB for the processing fee.
Different immigration offices have different requirements, and this may include:
- A copy of the TM30 filed where you live
- A hand drawn map to your house
- Pictures of you and your husband in various locations in the house (front of the house/ condo, in all rooms, etc)
- Witnesses or interviews with neighbors
- Rental contract (if renting property or a condo)