Under the Consumer Rights Act 2015, goods should be of satisfactory quality, fit for purpose and as described. If an item is faulty, you normally have 30 days to reject it and ask the retailer for a full refund; after that, you may need to accept a repair or replacement first. If that does not solve the problem, you may be entitled to a price reduction or refund, depending on the circumstances. Keep your proof of purchase and contact the retailer, not just the manufacturer; if there is a dispute, check the guidance on GOV.UK or seek advice from a consumer rights organisation.