This is a Professional IT Service Provider that I have worked with along side in the past. As a good service provider they have a solid contract in place. They also would have a continuance clause for the end of the contract and need notification that the client will be moving to someone else, 90 days is normal. They also I am sure have a line about if a client doesn't pay on time then xyz will happen to their services.
Also even if they did provide their o365 and were paying for it etc. Then if you shut this off it does not take 10 days to get it back online. Even if you have to change the domain etc. it doesn't take that long. Even if everything is fully deleted on the admin panel side, MS can retrieve it.
Sounds to me like the Chamber is trying to blame them for a bad decision in moving to a company that is incompetent.
Biting the hand that feeds IT
