Under the Consumer Rights Act 2015, a faulty product should be returned to the retailer where the item was purchased as per your legally binding contract with that retailer at the time of sale. A refund or replacement will be issued (provided you have the relevant receipt or proof of purchase).
If you require further information regarding the Consumer Rights Act 2015 please contact:
Trading Standards –
03454 040506 / http://www.tradingstandards.uk