After a good cooperation you will find out that af...

After a good cooperation you will find out that after 6 years your contract will be extended by 6 years because there is a year notice (the fine print) that you only see after 6 years and what has not been told even after regular contact and possibly extension this has been withheld.
Then they offer you a new contract at prices that are outdated. These are practices that you do not want to be scammed otherwise I cannot formulate this way of binding customers is simply not possible ... so watch out people do not work with them.

Spammail from printcontrol:

Answer v printcontrol:
We usually send this letter to our potential customers a few months before expiration ........

Do that to your existing customers instead of surreptitiously offering them another 6-year contract.