"The eBay Money Back Guarantee protects you in cases where an item is not received or is not as described in the listing. It covers purchases paid with PayPal and most other electronic payment methods." Would hope it is similar outside of the US
Whether it was a mistake or not, you didn't get the item that was described. A 2017 iMac is not an iMac bought in 2017, following that line I actually have a 2018 iMac and special 2022 MBP if anyone would like to buy 🙂 If it doesn't work for you file a claim, I really doubt he would win especially considering the listing says 2017 model. I don't really get the arguments here. Whether you spent $5 or $1000, you were deceived and aren't obligated to take the financial hit