Pink kittens, it makes all the difference in the world.
The Distance Selling Regulations applies to ALL sales made over the internet, by phone or post EXCEPT auction sites auction listings.
She bought them on eBay and paid for them by credit card, as far as I can tell.
The DSR states that all purchases made over the internet, by phone or by post are subject to a cooling off period. The buyer must inform the seller that he intends to return the goods within 7 days of receipt. He then must return them as soon as is practicable for a full refund, including outward postage.
The buyer MAY be liable for return postage costs depending on the terms and conditions of the sellerl.
If nextqueen bought these stools by any method except eBay auction listing the seller is in breach of the DSR and should be reported to Trading Standards.