I same to have lost my contacts on my account on my phone app, but there still on the lap top, does anyone know why ?

Let's get this working to help you restore the missing information, timneysweep.

When you say contacts, are you referring to the list of clients or suppliers in QuickBooks Online? If so, let's try to refresh the data in your mobile app to get back the missing data.

Follow these steps depending on the type of device you're using:

For iOS

1. Go to Menu ☰ and tap Help & Feedback.
2. Tap Refresh Data.
   Note: A message appears “Caution. If there was a problem getting your latest QuickBooks Online data, you can refresh it now. It may take a few minutes.”
3. Choose Refresh to confirm.

If you are using an Android device

1. Go to Menu ☰ then tap More Options ⋮.
2. Tap Settings then Refresh Data.
3. Select YES to confirm.

After that, verify whether the absent contacts are now visible in the mobile app. Additionally, I'd like to provide you with these articles for extra guidance while utilizing the mobile app:

• Your Business Dashboard Details in the QuickBooks Online App
• Compare Mobile App Features

Feel free to reach out if you have any further questions or need assistance while using the app. You're also welcome to ask more questions if you need anything else.