If you have a 123 Form Builder free account on your Wix website and you choose to upgrade the website to a premium plan, the 123 Form Builder account will be upgraded to the Premium Wix plan, which is a paid plan with extra features that you may use.
However, if you log into that same 123 Form Builder account in another Wix website that is not premium, your account will be downgraded automatically, but not also the subscription. The subscription can be cancelled/downgraded as explained in our designated documentation.
Always make sure which 123 Form Builder account you are using on the Wix website that you are working on.
To activate the same 123FormBuilder account on multiple Wix webpages you will need one of our native paid plans. Check our our features matrix for more details.