Yes, you can seek a refund for faulty goods regardless of your financial situation, including being on Universal Credit. The Consumer Rights Act 2015 entitles you to a full refund if the goods are defective. You should first contact the retailer to report the issue and request a refund. If they refuse, consider escalating the matter or seeking help from a consumer advice service. For tailored guidance, you might also want to consult the official gov.uk page on consumer rights.