What should I do if my son's Followers request was canceled during the application process in Thailand?

A user reported that their son's follower visa request was canceled due to an email indicating wrong personal information, while other family requests are still pending. Community members advised that once a cancellation notice is received, there is no appeal process, and the only option is to reapply, ensuring to double-check all personal information before submission. They emphasized the importance of accuracy in the application and suggested using an agent for assistance to avoid such issues.