I sold some cot sheets on a BIN and the buyer says they are "too faded". They were marked as used and they are comparing them in a photo they sent to the same brand cot bumper - it's a fairly in demand brand but older style so there's no way it won't have been washed a lot - obviously their cot bumper hasn't been washed as much.
They didn't ask before buying whether they were faded etc.
I offered a partial refund but the buyer says they want a full refund or a return. I have specifically said I don't offer refunds but now Ebay say I have to refund? What is that about?