Tata Docomo — unnecessarily cutting balance

I am using tat docomo sim card. Whenever i recharge it they every time cut my balance. I am having this problem since 1 month they always say that i have subscribed to any service but in reality i never subscribed to any service and they cut my balance automatic. I am tired of this network i have complained so many times but the problem persists. Yesterday there was a message that i subscribed to model_she but i have not done this and they took 90.28 rs balance. I want my balance back and also solution. And now there is not even an option to talk with their customer care.