Unable to Update My Phone Number on Getcontact

I’m struggling to update my phone number on the Getcontact app. My old number is still linked to my account, and I can’t find an option in the settings to change or remove it. I want to add my new number and delete the old one, but the app doesn’t provide clear instructions on how to do this.

I am requesting immediate assistance to resolve this issue. Please guide me on how to update my phone number in the app so I can continue using it without problems. Your prompt response would be greatly appreciated!