Got a citation for that?

I offer Bitcoin sales on my store's site, but it's kind of a pain because my cart doesn't support it. I have it set up as a cash method, and I send out an email manually with an address for the customer to pay to.

I was hoping to use Coinbase or Bit-Pay to let people pay with BTC on eBay as well. I've not seen any eBay policy stating I can't do that, as long as I also offer PayPal.