Hello,
My app has been running for 2 years without ever even reaching the free tier for phone authentication (10K) and still currently very far away.
Recently, users of my app are unable to login because of a quota exceeded error on phone authentication. this limit is restarted daily so it works for a couple of hours and then the error happens again until the day ends.
I checked firebase usage and I'm far away for the limits and also I am on Blaze plan.
I also checked GCP quotas page and all quota are within limit.
Support says this as a reply: "
Cloud Functions quotas are all within limits, the quota exceeded messages are coming from another system."
I did not understand what is happening and I cant solve it, meanwhile my app is losing revenue and users.