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All of my weekend listing was done from home. Don't remember accessing my seller account anywhere else recently.

Does your ISP give you a static IP or is it dynamic?

Not completely sure, Cox (my provider) says in the small print:

"Static IP addresses may be required or dynamic IP addresses may be assigned without a static IP request, depending on location."

http://ww2.cox.com/business/arizona/data/pricing.cox

I don't take notice of my IP address much, so I can't say if they assigned a static IP address in my case. If they're filtering on IP addresses, I imagine that they get a lot of false positives.

If they are filtering on IP and you're not paying for a static IP address, then Cox's DHCP server could have given you a new IP address that matched someone else who had been banned. Not out of the ballpark of possibilities when IP is used for selection / banning.

Would you have accessed it outside of your home at any point? It could be possible that Amazon keeps a record of where you log in, you shared an IP with a previously banned account at some point, and then you listed an item the other seller had listed.

I'm sure there's a simpler explanation, though. That seems fairly complex.

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