Paypal — they are not giving me my money.

Address:

Milk Khas, Bilaspur, 135102

On may i recived payment from my friend (Usa), its aproximately 8000 inr. I want to withraw this money to my bank account and i tried many time, when i try to withdraw money to bank account but money did not send moreover paypal account not show my money after this, even when i contact to paypal customer center they says that you will recieved your money by demand draft in 20-30 days. But after 10 days when i check my paypal, my balance show on paypal account, in addition if again i try to send my money to bank account then whole procedure repeat.in this bank details are all ok i also contact to bank.
Its been 4 months to trying this and stil im not recieved my money.