Move country, can't update phone number

We moved from the UK to Australia. The number under Account/Control Centre/Account Management has our Australian mobile number with an Aus country code, but also the UK country code before the mobile number. I can’t remove this, despite updating it. I have tried to call Ring, but they couldn’t help.
The billing also shows in GBP pounds when I want it shown in AUS $, despite me updating to an AUS credit card. Can anyone advise how I can resolve these issues?
I want to upgrade from protect basic plan to protect plus but want to get this sorted first.

In the Ring app, open the Main Menu and select Account Settings. This should allow you to change your new phone number. Changing the address and locations information should also help for you account to show the proper region. Try also changing this information by signing in at via web browser.

If this still does not work, our support team should certainly have a solution for you. Please give our support team a call at one of the numbers available here. If you are outside of the US, please visit here to see how to contact support.