Tata Sky — Forceful Debit from Account

Address:

East Singhbhum, Jharkhand

Before recharging my TATA Sky account ([protected]) today(01.04.2013) my balance was Rs. 4.76/- . I then recharged with Rs.155/- as per my monthly plan .
After recharge my balance is only Rs. 144 and I again need to recharge on 29th April 2013 where as my plan is valid for 30 Days.
This has been happening for past 3 months repeatedly. I need to recharge twice every month with Rs. ( 155+155) 310/- whereas my plan is of only Rs. 155.

Regards,

Varun