This type of behaviour should be banned by the European Union.
You should be provided with the exact reason of why your account is being closed , regardless of who is the provider of the service.
It's unacceptable that companies like Microsoft, Facebook, Airbnb feel entitle to behave like this knowing how critical the service provided by those companies are for some organization. Plus the fact that those suspensions are usually done automatically by an algorithm powered by Machine Learning or something similar.
This type of mechanism could destroy an entire organization if the account of CEOs , CTOs, CFOs are suddenly locked down without possibility to access their emails , their contacts, their meetings and others business critical information.
This is outrageous.