eBay

Buyer left negative feedback for an item as they failed to read listing correctly what can I do regarding this

A buyer arranged a courier to collect an item from me they paid for the item via PayPal they have received the item but another piece is missing and is now claiming they haven't received the item and have opened a not received case I don't have the t...

I need to sell multiple items so instead of listing separately I'd like to list all in one listing with a drop down menu