I appreciate that you'd be willing to do that, but the fact that it's necessary to get a human (even a technical and helpful one such as yourself) involved to deal with this is a big red flag.
To be clear, the person he reached should have reset / gotten the quota reset (if that's the root cause). There's often a human needed when something goes sideways, which is why we have paid support for Cloud - cloud.google.com/support. The issue is that he reached a human, and it didn't fix his problem. So like I said, sorry! (but I think it's okay to rely on humans fixing things like this)
I had to log in with my other account ( as I have the 'get back to work blocker' appearing on my other one).
I just want to say, this happened a year ago, and things may have changed.
I just had to make the statement as it hit close to home and Ive never mentioned it previously.
Hopefully there is a system/warning in place so apps arent taken down, without warning like this, when transitioning from a free to a paid account ( I think it was to do with the quotas like you said).