If you wish to register a complaint, please contact us in writing to Siobhan Holbrook, Mortgage Light Limited, 1 Whittle Court, Knowlhill, Milton Keynes, MK5 8FT, by email to siobhan@mortgagelight.co.uk or by phone on 01908 597655. If you cannot settle your complaint with us, you may be entitled to refer the matter to the Financial Ombudsman Service.