You should get a refund within 14 days of either the trader getting the goods back, or you providing evidence of having returned the goods (for example, a proof of postage receipt from the post office), whichever is the sooner.
If the retailer has offered to collect the goods, it should refund you 14 days from the date you informed it you wanted to cancel the contract. So, this means you don't have to wait for the retailer to have collected the goods to get your refund.
The seller is required to tell you about any faults or problems - just remember to factor in realistic wear and tear.
After the first six months, the burden will be on you to prove that the product was faulty at the time of delivery.
If you're second-hand purchase is faulty, you can claim a refund, repair or replacement from the retailer that sold it to you.
You could be entitled to a repair, replacement or a refund, answer some simple questions and Which? can help you start your complaint for free.Start my letter
When you buy from an individual (as opposed to a retailer), the Consumer Rights Act says that the goods you get must be as they were described to you by the seller.
There's no obligation on the seller to disclose any faults, but misrepresenting goods isn't allowed.
For example, something second-hand should not be described as new. If it is, the seller will be in breach of contract.