Where do you download the Quickbooks Self Employed app?

I'm having an issue with a glitch in QuickBooks Self Employed not allowing me to create a new client. I get an error when creating a new client to bill. I have a client waiting to pay me and I cannot create them an invoice. I asked chat support to help. I got an email saying "We’ve identified additional steps for you to try. We’re continuing to work on solving for this unexpected behavior and our next update is currently scheduled for Fri Jan 30 20:00:00 GMT 2026. In order for you to make sure you can complete your work; we would advise you to follow these steps: Utilize the Mobile App instead of the web browser." So I download the QuickBooks app. Sign in. It tells me "Couldn't sign in. This app is only for Quick Books Online. If you use QuickBooks Self-Employed, you can re-download it from your app store purchase history". The problem is I've never downloaded that Self-Employed app, and it doesn't seem to exist in the app store anymore. What the hell am I supposed to do QuickBooks? And they say the issue with creating the client should be fixed a week from today. What am I supposed to do about getting paid until then!? Come on QuickBooks. Also, I can't reply back to the email they send me telling me to download the app, and now it's the weekend so they don't have chat support. This is extremely frustrating.