My guess: Their account fell out of the non-enterprise TOS for some reason which is being obscured in the post (probably domain rotation related). Their T&S team proposed moving to enterprise for a custom resolution. OP's company refused, their account was purged because they had gotten several warnings about it.
I'm sure this sounds frustrating to the average HN dev who runs a legitimate startup with cloudflare on top and is now biting their nails worried to death about what will happen to them. But "online casino" immediately raised a million alarm bells in the post.