[CanSpice]

I found a "how do I report a campaign I feel is fraudulent" FAQ within about 30 seconds. You can also contact their support team, and they say they'll get back to you within five minutes.

It sounds like you might have tried this in the early days, it set an impression, and haven't checked since.

[bdcravens]

I found the FAQ, but my experience was that actually reporting something was a bit of a circular journey. You shouldn't have to contact support; abuse reporting should be a first class feature when the core business is people soliciting money.