eBay

I entered the weight and size of the package information into the eBay app as required to provide the shipping estimate to the potential buyer. When I shipped the item using USPS Priority Mail, the cost to me was $20.20 more than what eBay showed in ...

How do you edit an incorrect posting after someone has placed a bid? Section is locked where I need to correct the shipping information. Apparently eBay’s program preloaded the weight and size of the box and I didn’t catch it. Please advise.