eBay

I am an eBay seller. I'm selling one of my items, but I've moved, and eBay's auto-generated mailing address is the one I had before I moved, anybody where can I change my address to where I live now?

I purchased the mail from Usps through eBay, but the mailing address was wrong, so I opted for a refund and sent it to the post office myself, I would like to know when I can return the shipment to the account, the mailing number for the refund is 94...