Tata Sky — Adding add on packages without our permission subscriber id [protected]

Address:	400101
Website:	www.tatasky.com

Dear Sir,
Today i had recharged my Tatasky pack (Dhamal pack ) for Rs250/ per month.
since i recharged on 5.03.16 i should get validity for one month i.e.upto 4.04.16, but as per sms received from tatasky, my monthly pack shall be valid upto 28.03.16. (seven days less)
They have added, add on kids pack costing Rs.60/per month without my permission.
I have also informed the Tatasky associate on phone, quite before, to remove the add on packages, but the same is not being done from their end. How many times can i call them, call is hardly getting connected after half and hour and we are latterly tired holding the call.