X2 visa. Hello,I'm Mary from Uganda but currently studying in China.

My brother is working in Qatar now 2years, was admitted in one of the universities in China and received the admission letter and J2w forms expires on 30th this month. But he was told he can't get Chinese visa because Uganda has no embassy in Qatar ,but he has all the required documents including Interpol which is certified by the ministry of foreign affairs. What should we do?