activation of services without consent

I received 2 sms regarding activation of services I didnot request for as follows: LIFESTYLEDRESSINGROOM service has been renewed @ Rs 49.0 for 15day(s) from your Airtel Mobile. WHATSMOB service has been activated @ Rs5.0 for 1day(s).Txn ID N2511625302 ,04May18 04:49. Service will be renewed after validity expiry. Because of this my balance has been used up. I think porting of my number is the only option.