Hi there been told to refresh my app but It won’t allow me to

Hi there, amberlou27-gmail.

To start over fresh or refresh your QuickBooks company,   you can clear the accumulated cache and app data. Feel free to follow the steps I've listed below.

For Android devices:

1. Head to your phone's settings,
2. Choose Apps (varies by device).
3. Select QuickBooks Online from the application list.
4. Go to the Storage section, then tap Clear data.

For iOS devices:

1. From your phone's settings, tap Settings.
2. Chose General, then select iPhone Storage.
3. Select QuickBooks Online from the application list.
4. To free up the storage without deleting the documents and data for the app, select Offload App.

I also encourage reading this article to help determine which QBO mobile app features are supported on mobile devices: Compare mobile app features.

Let me know if you have any other questions or concerns by dropping a comment below. Stay safe and have a great rest of the day.