Cannot get security code on phone

"You cannot access this site right now
This site requires a security code to sign in. You will be able to access this site when your security information is updated on 22.08.2020. You can still access sites that do not require a security code, such as Outlook and Skype.

You requested to change your security information on 23.07.2020."

Why do i get banned for 30 days just chaning my phone number? This is so stupid, it has to be changed!

Or atleast give me a chance to remove my phone number completely

Not sure about the 2 step verification, but I am already doing it via email and phone text to get the security code. With the highlight or focus on the "Use a different Option" button, it is the only selection I can make to return to the previous screen
to choose another option. Know what I mean? I cannot enter the security code. I cannot seem to move to the top half of the screen to move the focus to the blank field to populate the code.

As for creating another account, did that too. Once I get back to this screen, I cannot move the cursor to the blank field to populate the code. Either there is some software glitch in the update on the Xbox One originals or I'm just dumb and can't figure
out how to get the cursor there.

you talk about the security code right? Go to www.login.live.com save up 2 security proves(valid e-mail or valid cell phone number). then you get a code send there that you type in into your xbox.

Did you get a code to your old Security proof?

Or did you update the old security proof to your new phone number and they sent a code to it to verify you have access to it?

If it is the second one then you will have to wait the 30 days.

If you see a "usage limit exceeded" error message when requesting a security code, this could mean the phone number has been used too many times in a short period of time, or that Microsoft detected something suspicious about the phone
number.

To better protect you and your information, Microsoft blocks the ability to request security codes from certain phone numbers when the risk of fraud is potentially detected.

If you can't get a security code, or if your security code doesn't work, go to
When you can't sign in to your Microsoft account and follow the instructions under
I can't get a verification code.

https://support.microsoft.com/en-us/help/12429/microsoft-account-cant-sign-in