Instead of importing the calendar to your device, you can use your iPhone to sync the calender automatically.
1. Open up 'Settings' on your iPhone
2. Select 'Mail, Contacts, Calendars'.
3. Select 'Add Account'.
4. Select 'Other'.
5. Click on 'Add Subscribed Calendar'
6. Add the calendar URL
(Please note: if you do not know the URL of the calendar then please click here to find out)
Your iPhone has now subscribed to the calendar.
If you have any problems, please contact Support:
Telephone: 0113 292 6070