If you've ordered a pre-configured router from us, the details to login to your router are unique to the hardware.
The username will be:
admin
The password will then be the serial number of the router.
Devices ordered prior to April 2023 may also have their password set to the one listed on the card or sticker on the bottom of the router.
For non-configured devices the details will either be unset, meaning you can set them on the initial setup or included on a card with the router or on a sticker on the bottom of the device.