Vodafone mobile
Unwanted subscriptions given and amount deducted

I am using vodafone prepaiid mobile connection from last two years. But from last two months unwanted subscriptions like online game is started on my phone and amount deducted from main account without my request for any subscrition.

I want my amount back.

Before last month i had started internet package for 15 days but after usage i had sent message for cancellation of package so that it cannot be renewed. But even after that my is subscription is renewed and again i sent message for cancellation but next time it is again renewed. This happens three times and amount is deducted every time. I had all messages. That why i am filing complaint.