Bharat Sanchar Nigam [BSNL] — activating service without consent and charging for that

Address:

AR NIVAS., KARICHARA,, Pallipuram po, Thiruvananthapuram, Kerala, 695316

On 23rd aug, i got a text message thanking me for subscribing to silverscreengupshup (55050) service and i have been charged rs 10.0 for that. I have no idea what that is. So i immediately called the toll-free number came with the text message to stop this subscription. There were no response from the other side. I called the number twice, still no response. I thought the service is deactivated. Today on 28th aug i got another message saying that my silverscreengupshup (55050) pack is due for renewal! I haven't subscribed it in the first place. I immediately called the toll-free number, they told me i have activated this service through call. To be honest i don't even attend those calls. This is cheating from bsnl charging their customer for the services they don't even heard of. It may not be a unique incident.