Maybe Qatar Charity could help.

But the moral of the story is, if you take a loan you should be 100% sure that you will be able to pay it back.

It's not your sponsor's business to ensure that you can repay loans, or your embassy's, or the bank's.

You took the loan, you have their money, and you agreed to pay it back.

His other option would be to get arressted and go to debtor's prison.