Wrongful deduction of balance by Reliance

Reliance number 8882168940
I had done a net recharge of 74 rs 1Gb 3G data for ten days period which ended on 29 sept. But due to technical difficulties in reliance they could not show the net balance through their USSD code and neither could I get the remaining balance information though their message code. I wrote a mail to them regarding this but they didn’t replied to that. Since I could not know about when the balance would be finished because of the malfunction so when my balance was finished they cut the amount from my main balance. I talked to their customer service they said that because I used net after 0 Mb balance the have cut from main balance I told them that the problem was on their side I should get a refund but they replied rudely that they cannot refund it and that I could do whatever I want it will not be refunded.
Earlier also two times they have cut my balance without any reason and for that also I have to call them many times to get refund. Many other reliance customer also had their balance deducted wrongfully.
I have all the failed messages for the balance information. Please do something as soon as possible to stop the harassment of customers