My mobile number is saved correctly however then I go to invoice and it adds a +1 in front of my number. How do I fix it as re-saving it is not helping

Welcome to the Community, @rotherysgasservi.

I'll be sharing insights to help you fix the added +1 on your mobile number which appears on your invoice in QuickBooks Online.

Before proceeding, please ensure that the mobile number and country you have entered match with the company phone number and selected country in the company information. Additionally, try entering the phone number in the format: +61 95xxxxxxxx. I'll be guiding you on how to verify your phone number.

1. Sign in to your QuickBooks Account.
2. At the upper right corner click the gear icon, select Account and Settings.
3. Click on Company, then select Contact info.
4. Select Company phone.
5. At the left corner beside the phone number click on the tiny flag and choose Australia.
6. Then select Done to save.

Here's a photo for your reference:

If the issue persists, I suggest clearing the cache and cookies to fix the issues. Sometimes too much cache accumulated in a browser can unexpected behavior with the product. You can also switch to a different supported browser.

I'm also adding these helpful modules you can browse to learn how to change your business name, contact info, or Employer Identification Number (EIN) in QuickBooks Online: Get started and adjust your settings in QuickBooks Online.

Get back to us if you have other questions or clarification about managing your mobile number in QuickBooks Online. I'm still available to help.