To add, this is why people serious about their business generally will enter into contracts with other businesses to ensure either side can't screw each other over. And it provides a clear transition plan if one party wants to leave.
For something thats $200/yr no one would be offering that.
No but you would expect price changes like this to be given advanced notice and implemented only after a current contract ends
Then you'd pay more to use service that would if the corner stone of your business can crumble overnight.
What? Of course they would. Send salespeople over to your office to negotiate terms, probably not. Standard contract with clear statement of fees, durations, renewals, etc? Pretty much any subscription service will have that. VPS on an annual plan, for example.