Subscription Business Center Why arent they canceling it Reno, Nevada

When I first receive their "not a bill" I saw how much I was going to have to pay and it way too much. So I decided to give them a call and tell them to cancel it. The agent just told me to just simply ignore the "not a bill" and just let the maganize die down. But they are still coming in. So I asked them again if it is cancel and they told me that they will put on a notice of cancelation. The maganize are still coming in. I called multiple times and email them about it, yet I feel like I am being ignored. Finally I was told that I have to give the publishers a call. I thought they should be the one who should be canceling it, not me. If I was told that sooner, I wouldn't worry a lot right now. Not its been a year since they told me, I fear that they might be asking for money that I can't afford, and they asked me if I want to renew my subscription, I told them no, but I get the feeling they might have just renewal it since the maganizes are still coming in.