How do I know if my product is covered by the guarantee? Customer Service Manager 13 November 2019 16:48 Each product comes with its own guarantee period ranging from 12 months to a lifetime. If you believe your product is faulty and covered by the guarantee then please submit a claim. Related articles How do I claim under the guarantee? Do I need my receipt to make a claim on the guarantee? What will void the guarantee on my cookware? Do I need to register my guarantee? Do I have to pay to return my product?