Vendor potentially screwing me?

[sirmocha]

So I had bought something from this vendor he claimed it was authentic and his post, and once I receive the item inspected it and it was not authentic. I reached out to him, asking for a full refund. On the post, he did not except returns but when I messaged him, he offered partial refund I declined, and I pointed out every single flaw to the item. After some back-and-forth he excepted the return request, but I am hesitant that he will still send me a partial refund when I didn’t agree to one what should I do?

[monica-sells]

If the item you received is "Not As Described" simply go to your purchase history, locate the item, and use the drop down box options to select that option ("Description"") for a return.

Do not continue back and forth with the seller at this point. 

You will receive instructions as to how to proceed from ebay....(depending on the sellers policies)

[soh.maryl]

Why bother with "reach out" and the back and forth dialogue?

Just open an item not as described case.  The seller will be required to send you a prepaid return label and to refund in full when he gets it back.  There is no such thing as accepting a return request.  Once you open the case, he has just two choices: send the return label and refund on receipt of returned item or refund and let you keep the item.

Have you read eBay's Money Back Guarantee for buyers?