Airtel — prepaid recharge and worst customer care service

I recharged my number with 69 rs pack (all locals and std calling free for 20 days) on 18th of july which is not activated immediately and in this perception i made some callings and i lost my balance . when i called to your customer care exective on 19th july he then activated the plan but when i asked him about reimbursing my lost balance he cut the phone abrupltly and rudely . i am sorry to say but i used airtel first time and you provide the worst service. And i will never ever use your services again.