Trust me paypal has the worst service possible.
There are a few things you can do make sure you have sent in your Photo id (License, passport etc), Your name proof (Some sort of Identity which has both your name and photo), next your address proof.
Once these are done send them a mail asking them how long will it take for them to process the lift.
Wait for a week and if the limit is still on then send them another request or call them directly to solve it.
Well, I sent my license for photo id proof, and my bank passbook for address proof, but I got an email they cannot lift the limitation with these proofs and they want more documents. I really don't have any more documents except college certificates. I don't have even any utility bills in my name. I don't understand now what else I can do to lift the limitation. Maybe now I have to forget about paypal, and just use other processors.