Hi there, SScandel. I can help you cancel your QuickBooks Online (QBO) account.
If I may ask, may I know the specific error message you're getting when trying to sign in to your account? This way, I'll be able to look into the issue further. For the time being, I recommend opening QuickBooks through a private window to check possible browser-related concerns when trying to log in to your account.
To save you time, use either of these keyboard shortcuts:
If you're getting the same result, I would suggest reaching out to our Support Team to isolate the issue. A live representative can look into your account securely and help you with the cancellation process.