I recently sold a Canon EF 24mm f/2.8 on Ebay. I advertised it an "AS-IS. NO RETURNS" Auction. This is the description:
"This lens has been used. It is 100% fully functional and sharp. The lens body is in fine shape, there is only one very superficial scuff that's hard to find. But the glass is another story. The front element is in fine shape, but has a few very small hairline scratches, they're only seen in the right light. The back element is scratch-free. BUT the inside has, what appears to be a lot of dust. It is not fungus, but there are some large specks in there. They do not affect the image quality. It's hard to photograph the dust on the inside, unless you're at the right angle. UM Date code, so it's from 1998.
Included: Lens, box, front & rear lens caps, and warranty card.
I'd keep this, but have this focal range covered.
I'm selling AS-IS. NO RETURNS. "
Now, the seller (two weeks later) wants to be reimbursed for the lens. He said: "I had the lens examined by a local subject-matter-expert. It was at that point; a red flag was raised concerning issues with the glass. There appears to be fungus on the lens." (Appears to be, even the 'expert is not sure) He then contacts me stating he wants to return the lens and be reimbursed the full amount.
Considering I advertised this as a lens with problems and NO RETURNS, I said "Dear -------, I'm sorry you're not pleased with the Canon 24mm f/2.8 lens. I was upfront about the issues regarding this lens. I'm no expert, and could not diagnose the particulates as fungus (I honestly did not know). Sadly, according to my auction, this is an As-Is, No Return transaction. The lens was fully functioning and sharp and the specks didn't have any ill effects on the lens. I'm very sorry if you are unhappy about the purchase, but I can not reimburse you for the lens or accept a return.
He has now opened up a case with Ebay, seeking 1/2 the repair cost for a lens cleaning. This is where I'm at, negative PayPal account balance and an open case with Ebay. I don't feel like I should be responsible for him not reading the fine print.
So my options are: Reimburse him the full price, get the lens back. Pay him $49 for half the cleaning fees. Or escalate this to Ebay's Resolution Center.