How do I cancel this account.
When I try to cancel the account, adobe sends me back to the topic page.
Is it possible to contact Adobe by phnone?
PS: I never asked for this account, Adobe must have charged me for this when I bought Adobe Pro annual subscription; I do not need an Adobe Marketing Cloud account because I'm using Google Drive.
I think you're referring to the Adobe Creative Cloud. Adobe Marketing Cloud requires a contract to be signed before the services for any solution begin.
I'd request you to have a look at this page and follow the instructions mentioned.