How can I obtain a certificate of residence from Thai immigration instead of my embassy, and what documentation is needed?

The user is seeking information on obtaining a certificate of residence from Thai immigration rather than their embassy, which charges a higher fee. Responses indicate that this certificate can be applied for at the Chaengwattana immigration office if the applicant is on a visa extension and has completed a 90-day reporting. Documentation required includes proof of residence, and the cost is approximately 200 baht. It's clarified that not all immigration offices, like Imperial World Lad Prao, can be used for this process.