Is there a reliable service to check if someone is blacklisted from entering Thailand?

The discussion revolves around whether there are trustworthy services available to check if an individual is on Thailand's blacklist for immigration due to overstay. Participants suggest contacting the Immigration Bureau directly for accurate information, noting difficulties in getting timely responses. Some mentioned paid services previously available, although reliability and current availability are questioned. The conversation highlights the need for clarity on visa regulations and the implications of being blacklisted.