If something goes wrong, contact DMA by email at customersupport.uk@dma.co, by phone on +44 800 208 4155 (available 24/7), or in writing to 411–413 Oxford Street, London W1C 2PE. DMA will try to resolve a complaint within three working days. Where that is not possible, it will acknowledge your complaint in writing within five working days and aims to complete its investigation within eight weeks. If you are not satisfied with the outcome, you can refer the matter, free of charge, to the Financial Ombudsman Service. Complaints about advice you have received are handled by your adviser firm.