Got this in my email.
I only have a link on the site, no ppc, no email.

Our partnership relies on a certain amount of understanding regarding how our businesses work. Until recently, things have been very smooth. We have just found out that you are bidding on our trademarked term This is causing us to lose money on precious sales that are a constant stream of revenue. If this continues then we will have to remove you from our affiliate program.

We're sorry if this seems drastic but it is simply a last resort concerning this issue.