Airtel — amount was deducted without prior intimation

Address:

Chennai, Tamil Nadu

well we all know that without net usage these smart phones are nothing. So network provides the data pack for 28 days for certain amount which i do recharge every month, but when the validity of the data pack expires there comes the problem we get deducted from the talk time balance amount like anything for eg, usage of 10 Kb for some rupees.. The main problem is that no prior intimation is been given on the expiry date of the data pack which leads to loss of the amount in the main balance. Certainly we can't be aware of every month expiry date with this, so its the responsibility of the network to provide us the intimation message. But when i spoke to the customer executive they said that intimation has been given for which i didn't receive any information ..As a matter of fact i lost 107 rupees because of this, . When i asked for the refund they said its not possible since it was my fault for not having seen the net pack expiry.. i would like to know what can be done. this has happened for me twice. i do need the suggestions, thanks.