Do I need to go to the Chaengwattana Immigration office for my Non-O visa extension and is the affidavit of income from the Belgian Embassy accepted?

The user is moving to a new area in Don Mueang and is inquiring about extending their Non-O visa based on marriage to a Thai national at the Chaengwattana Immigration Office. They seek confirmation that this is the correct location for their application and whether an affidavit of income from the Belgian Embassy will still be accepted, noting that it was not accepted in Nonthaburi last year. A comment confirms that the Chaengwattana office will require the same documents as before, including a lease agreement, owner's ID, house registration book, updated pictures, and bank letters.