I am Dr Zarqa working in Riyadh hospital and I want to visit China with my family but refused

I want to apply 15 days chinese tourist visa I am living in Riyadh working as consultant physician.
and buisness offices of PRC told me being Pakistani I am not allowed to have tourist L type for 15 days for PRC
Is this true and what is the solution how I can get visa as I want to travel to China to visit amazing great wall and glass bridge etc.