Consumer Redressal

Sir/Mam, I am being cheated by Airtel on my transfer of my mobile connection no. 9867438381 from pre piad to post paid. I had a credit of Rs.500/= on my pre paid connection after transfer the credit was down by Rs. 250/= They are explaining the adjustment against internet usage. This is a planned fooling and cheating by the company. I used the net only after paying my plan conversion charges and after the new connection was activated. I contacted the customer care office at Sector 17 and the in charge Mr. Shaikh very rudely refused to revert the unfair charges. I contacted the call centre and they made dance between pre paid and post paid departments. The nodal office has an automated voice response system which does allow me to talk to the officer or lodge a complaint. The appellate authority in Pune has a similar auto mated voice response system to frustrate lodging of complaints. Please help and advise on the follow up that i need to do. Thankyou Fareeda Mehta