eBay

I know this subject has been done ad nauseam but this is my first. On Friday night I was advised by ebay email that I had sold my (expensive) item. I have heard nothing from the "buyer" and they haven't gone through checkout. Obviously ebay have take...

Being allowed to post your items on another venue at the same time as being posted on ebay or at least ebay is not acting on it?. Can we post in our ebay listing that the item is posted elsewhere?. Thank you for any help you can give.