Tata Docomo — unethical deduction

Address:

Jharkhand

Respected Sir,

This is my third complaint for Tata Docomo. My no is [protected], and my complaint is that a amount of around Rs 70 is deducted on 26-27 july 2013 from my balance for unknown reasons.and my balance kept fluctuating , some times it showed Rs 37 and some times it showed rs 42. And when I contacted customer care on 26 july , She asked me to call after 4 hours and when i contacted after in morning next day , they asked me to contact after an hour and when i contacted after an hour, they first said to contact after an hour and when i got angry on phone they first told me that some amount was deducted for my miss call alerts and rs 37 for data charges.

Now the things is that my miss call alerts was updated on 12-13 july of this month and there is no way that the amount is deducted before 1 month, and regarding data charge ,(which i dont used) , when i checked my last 3 data usage ( by sending DATA to 121) the reply was and i quote " Dear customer there is no data usage till date"

I also checked my last 3 deduction which were right . and going by my last 3 deduction my balance should be around 70 which is nil now.
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Can you please help me in this. Because this is now become general thing . every time now and then they siphon off my balance.