Recently, two of our clients attempted to move their waste removal services to different providers. In the process, they discovered that they were bound to a service contract with the current provider that could not be terminated. The original contract was many years old, but according to the terms, it was set to automatically renew for a specified length of time unless written notice was delivered to the provider.
We've encountered this issue with other vendors as well. Be sure to read the fine print on any service contract and make a note of any automatic renewals. You could be legally bound to a contract with a vendor you want to part ways with unless the proper notice is given in a timely manner.