local psb denied to give z residence, what to do?

dear friends, I have a great problem I setup a company in a small town of Hubei province. later completed my all Z type documentsand after that went to my country and Z one from Chinese embassy. after entry in China I registered my self in local police station and appeared for z-residence first they wasted my time and later on finally denied to give me residence. on 22nd September my visa will expire. please guide me how to solve this problem?