I got a phone call from this number. didn't answer, and they didn't leave a message

got a call, no message.

Got a call from this number. No message was left when i didnt answer.

I don't know who they are or what they want but they keep calling me, but when I answer there is no one on the other end. Then when I call it back it says that you have to be a subscriber to call them and to remove your number. Which I do everytime and it doensn't seem to make a difference. Who are these people and what do they want?

none