Tata Docomo — balance deduction

Flash messages come up from time to time and this results in balance deduction and even after immediately deactivating the services the balance is not refunded. Even it is not possible to deactivate flash messages. Almost every week i have to face this problem. I even mailed to the company's consumer care cell but that got resolved just once. Again the same happened the next week. They are not even telling us the solution to which we do not lose our credit. Is this what we expect from such a reputed service provider?