Legally you have the right to return goods that are faulty or mis-described but you don’t have the right to return unwanted goods. Ask about the returns policy
When buying gifts this Christmas ask the seller about their returns policy before you pay. Some sellers may have specific conditions before they will accept goods back like returning goods within a set time period, in their original container or with the tags and labels attached.
Not all sellers will offer a refund some may only offer an exchange or store credit.
Make sure you’re happy with the sellers return policy before you buy.
Your rights explained
https://www.citizensadvice.org.uk/consumer
Kent County Council 15 December 2017
http://mailchi.mp/bab4ab365891/how-to-spot-fake-electrical-goods-puppy-buying-tips-and-more