If you have a Royal Mail (RM) business account linked to your Amazon account, your shipping reports will not appear in the Amazon reports section. Instead, these reports are accessible through your Online Business Account (OBA) with Royal Mail. This is because when you use a linked RM account, the label purchases are processed through the OBA, not directly through Amazon.

Additionally, many business users set up their OBA account to receive these reports via email on a regular basis, such as weekly. If you haven't already, you might want to set up this feature in your OBA account settings for convenience.