You must not have been spending million per year. A friend's company spends 10 million/year with GCP, which isn't huge, and can have an engineer from any group in a meeting the next day after a high priority issue.
How frequently are you engaging your account reps? You should be able to get the ear of a PM within 48 hours in most cases.
How frequently are you engaging your account reps? You should be able to get the ear of a PM within 48 hours in most cases.