Royal mail certificate of posting reference number

A Royal Mail Certificate of Posting is a document that provides proof of posting for items sent through the Royal Mail postal service. The certificate is issued by the Royal Mail and includes a unique reference number, which can be used to track the item and prove that it was posted.

The reference number on a Royal Mail Certificate of Posting is typically a combination of letters and numbers, and it is usually in the format of a 13-digit code. The reference number is used to identify the item and track its progress through the postal system.

Here is an example of what a Royal Mail Certificate of Posting reference number might look like:

"RM123456789012"

The first two letters, "RM", indicate that the certificate was issued by the Royal Mail. The remaining 11 digits are a unique identifier for the item.

You can use the reference number to track the status of your item by visiting the Royal Mail website and entering the reference number in the "Track a parcel" section. You can also use the reference number to prove that you posted the item, in case you need to make a claim or dispute with the recipient.

It's worth noting that the reference number is only valid for a limited period of time, usually 12 months from the date of posting. After this time, the reference number may no longer be valid, and you may need to obtain a new certificate of posting if you need to track or prove the posting of the item.