Bharat Sanchar Nigam [BSNL] — adding services without my permission to my prepaid mobile

Bsnl is deducting money from my prepaid mobile balance by adding services without my request and permission.in 2 week time rs25 (15+10+10) is deducted by adding 3 services (Confession (11th oct), voice chat (17th oct), silverscreengupshup (25th oct), i don't even know for what these services for.

I got calls from bsnl, first 2 calls i attended but didn't confirm to subscribe the service and third i even not attended the call. First 2 services i send msg to stop the service (19th oct), even register for dnd (18th oct), but seems like bsnl is not concern about it and will make a call and activating the service (Even without attending the call).

Refer attached screen shot for sms i received for activated services.