Reliance Communications — Deduction of balance

Address:

Gwalior, Madhya Pradesh, 474001

My name is akash garg from gwalior (m.p). I am using reliance gsm prepaid service, my number is [protected], from 5 to 7 days company deducting some amount of my balance trew data charges but i have not used any data sicne 25 days and i m using only wifi data at my work place, even i already set off my data connection option in my phone.
I don't know why company deducting my balance contusions without any uses of its Internet service. They have charged me almost. 100/- Rs from my main balance.
Please halp me to sort out this problem any refund my balance.
I am feeling so cheated.
My number not even connect with company coustmer care executive to solve this.