All communication from slack to us indicated that we are on for renewal on september 1. This has affected us badly. Either we have to move out to some service which cares.
If any one of you have experienced something similar then it would be good to know what you did.
seems one additional user was added and that payment failed due to credit card expired. This made them downgrade the plan for about 80+ users in our account. It is their policy.
I apologize if this is an offtopic but if you're looking for an alternative, then we have tried Mattermost and it was almost identical. Importing slack data took some time and tweaking but in the end, everything went through without any major issues.
Good luck!
