When your fixed term expires you then move to a rolling monthly contract and you can continue like that until you decide to either renew or move to another ISP. however if you had discounts when you took out the contract you may lose the discounts when you move to rolling monthly
Hi @Knight7247 Just following on from the brilliant advice from @imjolly, It's worth giving our broadband team a call, so they can discuss some options with you, as It may be better value to stay with us, rather than moving away, or cancelling then re-joining.
To speak to our broadband team on 0800 079 0544
We have a handy web page which has more information on cancelling your broadband here: Broadband cancellation
Chris S