The photos from Asda, Boots, Jessops and the local photography shop were not submitted on-line. I burnt a CD-RW with the images and used the in-store customer-operated kiosks to order the prints (except in the local photography shop where the minilab was operated by the staff). The Boots prints were made using their instant service. I also attempted to try their 1 hour service but this used a different machine which was unable to read CD-RW disks.
As these particular services are not available on-line, the links below are to their corporate websites (note that Boots and Jessops do also offer on-line services, I tested the Boots service last year), .
Asda -- Boots -- Jessops