eBay

I mailed an album to the inccorect person. I got the records mixed up

I want to cancel a shipment. The buyer has not paid for the item he won. I sent him a few messages. How do I cancel Thank You

How do you block a buyer?

Good Morning, I just sold an item on ebay with a shipping charge, but there was no shipping charge included. The package is going international. Any idea why the shipping costs was not included/Thx