How do I cancel Subscriptions to US Magazine?

I'm trying to cancel magazine subscriptions, but having problems?

• I received one of those offers where you can get up to four magazines for free. Well, I was unaware that there was a processing fee for each selection that I can't pay. I was through mybonuscenter.com I went through magcustomerservice.com, but they claim to have no record of me there, yet I just received an email telling me that my selections were being processed. I don't know what else to do. They want subscription numbers, and things like that, which I was never given. Please help if at all possible.

• Answer:

  I did something similar to that. The number is most likely on the magazines themselves. Where it has your name and such, there's some numbers above your name. This'll point out where it is. http://www.mspmag.com/images/asset_upload_file288_32304.gif Hope this helps.