Consumer Redressal

Respected Sir i have post-paid tata docomo gsm network connection which was converted into postpaid from prepaid on !st aprail ph. no. 8274980424. my bill no 1714831852 dated on 17-04-14 is seems to be generated excess bill of data used . because of network speed my phone can’t use more than even 500 MB data in a month , even from 10AM to 6PM I use wifi of my college and in starting day of my postpaid connection I used my room’s wifi every night despite of these my data used bill is generated over 134392 MB and bill amount is Rs.134392. I can challenge I never used this much data and the data used generated is totally fault. Please consider it sincere case and solve my problem. I am looking for quick and positive response from you. Regards Krishna Kumar metropolitan