Airtel — prepaid 509 plan

Website:

www.airtel.in

I recharged my account with 509 which said unlimited calls and messages for 84days. But now i am charged for toll free number and customer care number.
When i call up the customer care the supervisor says it is understandable that service numbers don't come under regular calls.
There is no such information present while recharging in the portal. This is pure cheating of the customer. The complete plan details are not conveyed correctly. I would like refund for all the deductions made.
Most of the time signal will be h + even if i have 4g sim with 4g plan. Worst network.