Airtel — unable to access internet service

Tried to surf a website, it shows Airtel redirect/error not resolved...i am unable to access the site . This is really annoying why did i waste money for data services when can't even access it. :(. For some sites it works fine but for the importance sites which i really have to access it's unable to go through.
My wifi service broke down that's why i recharged with mobile data services but hell it's of no use . It's really urgent please resolve this issue