It isn't the kind of experience that we want you to come across, PaperPusher.
I understand the importance of keeping the security of your account. We've taken note of this issue. With QuickBooks, technical support is already included in your subscription. Thus, we will never ask for payment for any system/technical issue about your account.
For now, you may follow the suggested step provided above by turning off your computer as soon as possible to protect your account.
To further help you identify and protect yourself from tech support scams, see this link: How you can help protect your business from fraud. It will provide tips and some actions to take in case you have an interaction with a tech support scammer.
Stay in touch if you have any other QuickBooks concerns. I'll be always around to help you in any way I can. Have a great week ahead.
