I had the same problem and contacted Nissan UK Customer Service and they emailed me a pdf of the relevant service schedule after verifying my identity and proof of ownership:
Customer Services
Nissan Motor (GB) Limited
Opening Hours Mon-Fri: 08:00 to 20:00, Sat: 08:00 to 14:00
Telephone: 0330 123 1231
However, I also found incredibly detailed service info on the Haynes Autofix website - again by putting in the car make, model and reg number. They have every single detail of each service task for someone wanting to do a diy service.