Better to call call centre 155 and ask for what are the services activated without or without your knowledge. They would help you to list out all the services enabled in your number. Then after, you can request to cancel what ever services you dont need on your mobile.
to reach support agent:
call 155, and then press 1 and then press again 1 if the problem on the same number you are calling and then press zero and then wait for the agent.