eBay

I shipped the item and it was delivered 1/29/202. I have tracking number and it says delivered to parcel locker. Buyer says her never received.Do I refund the buyer or turn this over to Ebay and let them work it out with the buyer? What else can I do...

Hi.....I would like to have a sale on some of the items in my store. Does it have to be all the same kind of item.....short sleeve shirt / men's jeans.....or can I pick any item and have a sale on it? How do I promote a sale? How would anyone know I ...