Thank you for getting in touch about this, @luke0709. We would also feel the same way when we receive an invite link that doesn't work. We're here to provide you with the steps to get this investigated.
Seeing that you've tried all the possible processes to resolve the issue by doing the basic browser troubleshooting steps and still get the same concern. We suggest reaching out to the technical support team. They have the tools to check into your account and if there's an ongoing investigation with this kind of issue. They may also create a ticket for investigation if needed.
Here's how:
- Go to Help.
- Select Contact Us.
- Enter your concern, then select Let's Talk.
- Choose a way to connect with us:
- Start a chat with a support expert.
- Get a callback from the next available expert.
For further information on the schedule, see this article: QuickBooks Online Support.
Please post a response below if you have any other QuickBooks-related queries. You can always count on us, @luke0709. We'll be happy to help you. Take care always!