I just wanted to find out a way to see when my iPhone contract had finished and and when I can upgrade

Hello Isobel57,

Thank you for using Apple Support Communities. Based on your post, you'd like to when it would be time to upgrade your iPhone.

The best way to determine this would be to use the iPhone Upgrade Program website.

These sections may be particularly helpful, 'Check your upgrade eligibility now' and 'FAQs about joining'.

Wishing you well, cheers.