I think I'd be calling that OUTRAGEOUS.
Let's see how the scenario might go.
Buyer: "Mr Rogers, I want to exchange this frilly white apron which I bought from you."
Mr Rogers: "Do you have your receipt?"
Buyer: "No, I bought it online."
Mr Rogers: "Ah, okay - what was the item number/order number?"
Buyer: "I don't have that anymore, but I bought it from you - you can check your records."
Mr Rogers: "Right.... Your name?"
Buyer: "Mr Scabidabble."
Mr Rogers: (puzzled) I do remember that name... but I only seem to have a record of a purchase from you more than a year ago."
Buyer: "That might be it."
Mr Rogers: "Order number PX000104329J?"
Buyer: "Could be."
Mr Rogers: "One white apron, purchased by credit card 13 months ago?"
Buyer: "Yeah, must be it, because I only bought the one apron from you."
Mr Rogers: "It was thirteen months ago."
Buyer: "Yes."
Mr Rogers: "I'm not sure I understand this situation correctly..."
Buyer: "Look, I bought this apron from you, and I'm not happy with it."
Mr Rogers: "It was thirteen months ago. I'm afraid we do not accept returns after that length of time."
Buyer: "But it's FAULTY. I was frying some bacon and then noticed one of the frills starting to detach..."
Mr Rogers: (trying to smother incredulous laughter) "I am so sorry, Mr Scabidabble, but clothing does not have a permanent money-back guarantee over a period of use. That you've suddenly noticed some thread having become loose does not entitle you to a refund or exchange after such a time period. Had there been a problem within a month, we would happily have refunded, but you cannot seriously expect your clothing to be given a lifetime guarantee after you've been wearing it for more than a year...?"
Buyer: "Oooh, you're so shonky! I'm going to neg you! I'm going to bad-mouth you! I'm going to make you sorry! Shonky dodgy sellers refusing to refund faulty item! Bad, bad, bad!"