Vodafone India — Insane bill amount and cheating to customer

Address:	Nagaon, Assam, 782103
Website:	vodafone

I am a postpaid customer and my mobile number is [protected]. on last 17th jan 2016 i requested vodafone customer care to activate one 3g plan amounting to 450rupess per month which is a auto renewal pack with 2gb of 3g data.
but on 24 th jan, that 2gb data was almost over, so i requested vodafone customer care to add on another 2gb data which will cost 450 rupees. but they told me that its not possible so they advised me to get a pack of 650 rupees which will give 3gb of data and that old 450 pack will get converted to 650 pack with an additional 1 gb of 3g data.
but after requesting also that pack could not activated due to two internet pack was already activated on my mobile. ( out of that two internet pack, one is 2gb 2g data handset bundle offer and another is 450 rupees 3g data pack),
then they said that nothing can be done by them so asked them to deactivate that 450 rupees pack as it will cost 4p/10 kb ( not sure) and they said bill will come around 450 rupees + service charge as i have already used that 2gb under that 450 rupees pack from 17 th january to 24 th january night.
but today morning i saw my out going call is blocked and unpaid bill amount is around 7000 rupees.
so its a totally cheating as the used internet 2gb was comes under that 450 rupees pack and i have the right to deactivate that pack at any time as it is a auto renewal pack.
as my outgoing is blocked so it gives a lot of mental harrasement and financial lost as i have to manage another mobile number and recharge.

kindly check it and my request is to calculate that used 2gb under that 450 rupees pack.( sorry for the english )