iceteria:
This will seem harsh but your contract hasn't expired, only the minimum term has expired.
Your agreement says something like this....
what happens when the minimum term ends
2.2 After the Minimum Term ends, we will continue to supply you with Services as normal until your Contract is terminated in any of the ways described in Section 4.
Sh*t way to treat a customer but that's business for you. I hope you find you do have some leverage.