My brother went to register for post-utme after weeks of changing institution,but keeps showing "This Jamb number was not found in the list" or "No record found".

what could possily be the cause and might be helpful solution or even a suggestion please?

Please those with either exprience or knowledge about it should help.

Atiku has happened to him by stealing his jamb reg no.anyway go to any jamb cbt centre to resolue the issue.