UPDATE:

visa is reviewed and today we got approval and it's ready to print.

what we did?

my mother went there to talk to the captain with sadness on her face and the captain said that he will review it again then after 1 day we got the approval.

hope this situation will help someone with the same problem.

TIPS: if he enters Qatar multiple times, please stick in 1 immigration that is tested for the approval and don't change immigration or else you will face a problem like this depends on the captain's mood.

thanks for the response.