Google claims that they have systems to detect the fraudulent ad traffic, making the extortion threat empty. Then again Google has made their own bed by making it impossible to contact a human being who works there. It’s completely plausible that malicious actors could get your account banned and then there’s a kafkaesque process to get unbanned.
Interesting - on the few occasions that I have had to contact Google support for G Suite, I have been impressed with the fast and accurate response. Even when it is online support, I have invariably had a call back once the case was closed to see if I was happy.
Good to know that Google has upped their customer service game!