I know I'm going to come off as a Google apologist, however, I'm leaning towards there being more to the story than what you are saying. The previous month's billing didn't 'went through' and you are unable to zero in on whether this is a Google issue or a you issue. I get that it is easier to complain on the internet and often cathartic do so as a coping mechanism. Having an account suspended because of a billing is…
They're playing catch-up, and customers are at risk while they do so.
(1) AWS had a head-start on Google and Google's been chasing AWS's monetization strategy and away from their Google App Engine approach, which was fundamentally different. Azure may be more contemporary to Google's Cloud, but Microsoft has a tried-and-true large-scale corporate customer support engine that Google's only now being forced to build out to support its Cloud offering (the customer support story for ads was fundamentally different, and Apps for Domains didn't have the scale Cloud now does).