I can only suggest you have obviously/maybe entered incorrect information? I have just done my 90 day online after being out of the country (did have a re-entry on my visa) and changing address since my return , being assured and have photos that my new TM 30 has been done. My previous online applications were accepted so this could be interesting! My agent only charges 100 baht for 90 day reporting so if I have a problem I'll be straight down their office.
The ask:thailand community, consisting of multiple Q/A groups with over 100,000 members, powers this platform. It is not an official government resource. Our members actively contribute to this resource, and while we strive for accuracy, we cannot guarantee its complete reliability. Assistance to travelers is provided as a community service.