I want to make sure I can remove my credit card, but it seems I can only replace it, not remove it, or remove my account on the ads manager site.
It seems the beta is not feature-complete, or I am just not able to find the place where I can “get out”.
I basically just wanted to see what it looked like, but now I am at risk if there is a vulnerability in the beta site, and someone manages to gain access to my ads manager account and spend up to 300 USD per day of my money. Not good.