The Consumer Rights Act 2015 sets standards for goods, services and digital content bought from businesses in Great Britain. Goods should generally be of satisfactory quality, fit for purpose and as described, while services must be carried out with reasonable care and skill. If goods are faulty, you may be able to reject them within 30 days or request a repair or replacement; a refund or price reduction may apply depending on the circumstances. Keep your evidence and complain to the seller first, then check Citizens Advice or GOV.UK for guidance; Northern Ireland has separate consumer rules.