Mts — Not getting proper refund and very intolerable behaviour by their customer care representative

Address:	New Delhi, Delhi, 110043
Website:	Www.mtsindia in/recharge.html

I recharged my mblaze WiFi card with rs 499 but after waiting for almost half hour i didn't get my balance. So i talked to there customer representative and they told me to recharge again with same amount and i will get refund of one of my balance. But after an hour i got both of my recharge done.
Now MTS is not refunding my money, they said its because of our technical failure but still they cant do anything. Even there customer representative are not responding properly.
I called them 4 times but they always cut my call or just give me false information like -"you will get your refund tomorrow" or"we will call you in 4 hours". But still i didn't get call or my money. Please take proper action