Seller not responding for return

[choffman21]

I bought a set of tires and realized we ordered the wrong size. Attempted  to cancel the order before shipment and messaged the seller but they shipped anyway. They offer a 30 day return policy but aren’t responding to allow me to ship back. I got guidance from eBay to dispute the transaction (before shipment) and apparently that was a bad idea because now eBay has washed their hands of it. The PayPal dispute didn’t work either because, of course, I HAVE the product. Last Ditch effort was to complain to eBay that they’re not following seller rules, but I don’t expect that to go anywhere. Help!! Out $810 with tires I don’t want when they should have just let me ship them back. 

[corvettestainless]

Have you opened a 'return'? (in your 'purchases' there will be a blue box that says 'return this item'). Because you ordered wrong, you would have to pay shipping to return, but seller has to respond to an official 'return' request). 

[orangehound]

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@choffman21 wrote:

 I got guidance from eBay to dispute the transaction (before shipment) and apparently that was a bad idea because now eBay has washed their hands of it.

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What specifically did eBay tell you to do?