If you have purchase one of these "must have" gifts for Christmas this year make sure you check that the product is the real deal.  If you have any concerns then you should check with the Company from  whom you purchased the product. 

Under the Consumer Rights Act, retailers are required to offer a refund if a product is shown to be faulty within 30 days of purchase.

You are also entitled to a full refund for a further six months after this period if a fault develops and a repair or suitable replacement is not available.