If you have lost the DAD keys to your mailbox, then Post Boxes UK can help. Simply send an email to [email protected], with the following information: DAD key reference (usually between 9000 to 9500) Your name and delivery address We will then forward an invoice to you and upon receipt of payment we can despatch the replacement keys to you same day (for orders before 12pm). Availability - ex-stock. Should you require any further information, please call Post Boxes UK today on +44 (0)1922 218218. Alternatively, your enquiry can be emailed to [email protected] Thank you.