A few years back, our business credit card was somehow stolen and used to buy Google Adwords. We disputed the charge with our bank. A day or two later, at 4am local time, our GCP account was suspended for fraud (presumably because the same, stolen, card was attached to that account). All instances were stopped and our service was brought to a halt.
We couldn’t contact Google Cloud support because our account was suspended. We had to go through our network to get our account re-instated. Pretty awful way to start our morning, to say the least.