[google-cloud-sql-discuss] Charged when instance is stopped - test sql instance

Hi, I have a PostgreSQL 13 database instance, its a 'test' instance with the lowest spec I could find (end of msg for spec).  The pricing calculator estimated about £6.50 per month I thought.

I created the new instance on the 2/2/22, created maybe three tables and added maybe 4 or five rows of data in each table (so almost nothing in there).  I then stopped the instance on the 3/2/22.  I used it for less than 48 hours.

Looking at the charts section in the console and apart from those two days, no activity has occurred; active connections, storage use, total memory use, CPU utilisation, etc all show usage for the two days I had the database running but blank since the 3/2/22 when I stopped the instance.

I've read a number of places that say that I shouldn't be charged when my database instance is stopped.  However, I've been charged what seems to be the full £6.50 (its actually £6.49) and for March I'm forecast the same.  Why am I still being charged?  If I don't want to be charged do I need to delete the instance every time I'm not using it?

Configuration:

vCPUs: 1, Memory: 614.4 MB, HDD storage: 10 GB

Database version is PostgreSQL 13.4
Auto storage increase is disabled
Automated backups are disabled
Point-in-time recovery is disabled
Located in europe-west1-d
Not highly available (zonal)
No database flags set
No labels set

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