I want remove my number phone from faceit

Why i cant remove my number phone from faceit? i dont know why faceit put number phones permanents … imagine if my account get vac ban cause was stolen i cant play more faceit cause phone is permanent … i need to put other one i dont understand who can help me pls?

Phone number is one of your trust ids. It will be better if you contact with Faceit support for further actions.
And for Faceit privacy I would suggest them to let user see last 3 digits from the number.