We recognize that this situation can be quite challenging, particularly after you've already invested time in troubleshooting without reaching an expert, @benzuki0. Please know that we're fully committed to supporting you through this process.
To ensure your concerns are addressed comprehensively, we've escalated your case about the system requirements prompts when adding your credit card to our Next Level Help team. They will carefully review your Community comments and support history to understand the full context.
You can anticipate a response from one of our experts within 1-2 business days, where they'll outline the next steps to get you back to business.
We appreciate your patience during this process. If you have any other questions about credit card account setup in QuickBooks Online, please don't hesitate to click the Reply button below. We're always here to help.