eBay

I received a package from an eBay seller that I didn't pay for or order. I've searched eBay & Paypal to no avail trying to locate contact information of shipper name on package. I just keep getting user ID not found. I only have a name and return add...

I have a prospective buyer that has made an offer on item I am selling. I counter offered and told her that the shipping would be $5.95 as that would be my cost. She reliped that the shipping on her end shows $7.05. How can I adjust shipping cost? Wh...