The problem is all these SaaS companies have cut costs so much that all their support has been reduced to useless offshore at best and at worst a chatbot. They do go down and don't work and often times there's simply nothing you can do. The worst offenders will seize upon the moment and force you to upgrade a support plan before they will even talk to you, even if the issue is their own making.
Unless you're a huge customer and already paying them tons of money, expect to receive no support. Your only line of defense if something happens and you're not a whale is that some whale is upset and they actually have their people working on the problem. If you're a small company, startup, or even mid-size, good luck on getting them to care. You'll probably be sent a survey when you don't renew and may eventually be a quotient in their risk calculus at some point in the distant future, but only if you represent a meaningful mass of customers they lost.