Upgraded my account by mistake

[Yatin Arora]

I am using free credit provided by Google for GCP services, but I upgraded my account by mistake and now I can see more than 8 cores there available,

what does this mean can I degrade my account back to normal, will they charge me after credit over.

how upgrading effects me monetarily 

Please help me regarding this 

[davidc...@google.com]

Hello,

After you upgrade your account, any remaining, unexpired free trial credit will remain in your account and you will only be charged for resources used in excess of what’s covered by any remaining credit. Hence, you may incur charges after you use all of your remaining credits depending on the resources you are using. You can read more about this in our Google Cloud Platform Free Tier Documentation.