Vodafone India — Irregularities in bill

Address:	411033
Website:	www.vodafone.in

I would like to complain the incident which is happening with me since last 3 bills of vodafone postpaid.
i am using a corporate plan of rs 325 in which i get 1 gb free 3g data.once this data gets used i apply for a 2g pack of rs 199 (2 gb 2g data).
since last 3 cycles my activated 2g plan gets deactivated due to soem technical issues from vodafone and i am charged for capping charges of rs 1000 in my vodafone bill.
i ignored for the first time but now its repeated for the third time in a row.
please help me with the same.