How do I change phone number on my facebook account?

hi Robert.
see if any off this helps you to get it sorted.

1. Open your Facebook app and tap Sign Up for Facebook.
2. Tap Get Started.
3. Enter your mobile phone number, or tap Use your email address.
4. Follow the on-screen instructions and enter your name, password, date of birth and gender.
5. To finish creating your account, you need to confirm your email or mobile phone number.

How do I create a Facebook account? ' Facebook Help Center ...

https://www.facebook.com/help/ipad-app/188157731232424?helpref=about_content
How do I start a Facebook account?To create a Facebook account:Go to www.facebook.com/r.php.Enter your name, email or mobile phone number, password, date of birth and gender.Click Create an Account.To finish creating your account, you'll need to confirm your email or mobile phone number.Create an Account ' Facebook Help Center ' Facebook
How can I set up my Facebook?To create a Page:Go to facebook.com/pages/create.Click to choose a Page category.Select a more specific category from the dropdown menu and fill out the required information.Click Get Started and follow the on-screen instructions.How do I create a Page? ' Facebook Help Center ' Facebookhttps://www.facebook.com/help/104002523024878/Search for: How can I set up my Facebook?
How do you set up a second Facebook account?Go to the Facebook homepage (facebook.com) and fill in the required fields on the sign-up form along the right side of the page. Enter an email address that has not yet been used to register for a previous Facebook account, your first and last name, a password, your gender and your birthdate.31 Mar 2015How to Make a Second Facebook Account ' Techwalla.comhttps://www.techwalla.com/articles/how-to-make-a-second-facebook-accountSearch for: How do you set up a second Facebook account?
How can you have two Facebook accounts?The first Facebook account that you link to the app becomes your primary account. To add additional accounts, open the app preferences and tap on Accounts. Here you will be given the option to Add another account. The app will ask for the Facebookusername and password of the second account you would like to configure.5 Jul 2017How to Use Multiple Facebook Accounts on iPhone, Androidhttps://www.guidingtech.com/28063/multiple-facebook-accounts-iphone-android/Search for: How can you have two Facebook accounts?

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Phone Number: 1-650-543-4800
Average Wait: 12 minutes - 24 hours, 7 days

You need to get to your facebook personal settings through facebook.com on a PC. You'll be able to change it or delete if from there

Log in with your email address and then update your mobile phone number.

Firstly you need to login with your facebook account then open your account setting and change your mobile number and your profile . Welcome to Facebook Log In Sign Up or Learn More

Change your phone number in your Facebook account Settings, General Settings.

For one thing, you do not open a Facebook profile for a business, you open a Facebook business page, if you insist on doing it, you should have used a different number and email address, that's Facebook 101.

I would suggest you log out of your new account, do a search for the old account, log into that one and change both the phone number and the email

Since Facebook only allows one profile per person, I would suggest you change both asap before FB randomly decides to eliminate one of the profiles