GOV.UK guidance explains key rights under the Consumer Rights Act 2015 for goods, services and digital content, including requirements that items are as described, fit for purpose and of satisfactory quality. Your remedy can depend on what went wrong, how long ago you bought it and whether you dealt with a trader or private seller. Start by raising the issue with the trader and keep your receipt, messages and other evidence. For practical help with a dispute, check Citizens Advice or consider advice from a solicitor regulated by the SRA.