If you have lost the Arregui double sided letter box keys to your mailbox, then Post Boxes UK can help. Simply order online below, or send an email to firstname.lastname@example.org or call us on 01922 218218, with the following information: Arregui key reference Your name and delivery address There are two styles of Arregui key with the same reference (not good, we know). Please note that you are ordering the double sided / two sided keys, for use with bankable/apartment style modular mailboxes. The profile is cut to both the top and bottom of the key. Please refer to the image. We cannot accept refunds on cut keys, so if you are unsure as to what you need, PLEASE contact us. We will probably need a photo of your lock, so it would save time if you have a photo ready to email to us. PLEASE NOTE: YOU ARE BUYING ARREGUI DOUBLE SIDED KEYS FOR USE WITH BANKABLE MAILBOXES, I.E: MAILBOXES IN BANKS OF MULTIPLE UNITS (USUALLY FOUND IN APARTMENT BLOCKS). Arregui also do double sided keys for some of their individual units (usually budget boxes, where the cylinder is a lower quality Chinese type): These keys will not work with the budget cylinders. Please ensure you have a apartment style mailbox before purchasing as refunds cannot be given on cut keys. If in doubt, please contact us. 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 2pm). Availability - ex-stock. Cost includes Recorded Delivery (insured for loss / non-delivery) within UK. Orders from overseas may incur an additional postal charge. 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@example.com. Thank you. Please note that Post Boxes UK can not be held liable for keys supplied which do not work with the intended lock. Refunds cannot be give on cut keys. Post Boxes UK cannot be held responsible for keys delivered to a physical post box, letterbox or mailbox, regardless of method of sending. All keys supplied are done in good faith on the assumption that the buyer is also acting in good faith. Please ensure that you type the correct key reference when ordering.