I was added against my will and don't know how to leave it
I have a gmail account but never wanted to open a Google Workspace. I already got mysterious notifications months ago pretending I started trying Google Worspace for organizations (which is false), but I sent them to spam so they are now deleted. Now I just got new messages, one with title "Welcome to Google Workspace" and headers including my email address in Cc: and another address in To: , and another message with title "Your Google Workspace billing information was received" with my address in To: . It also says "You won’t be charged until your free trial ends.". I don't know what that is, which billing information it is. I have no updated payment details associated with my email.
I don't know how to contact Google to completely remove me from that, as all google support methods seem hard especially since I have no genuine access to any Workspace account, through which I might ask for support. What can I do ? thanks