Under the Consumer Rights Act 2015, you normally have a short-term right to reject faulty goods within 30 days of receiving them, if they are not as described, fit for purpose or of satisfactory quality. The retailer, rather than the manufacturer, is responsible for dealing with your claim. If you validly reject the goods, you can usually request a full refund using your original payment method, although you may need to return them. After 30 days, repair or replacement rights usually apply first, with further refund rights in some circumstances. Check the official guidance on GOV.UK if your situation is disputed.