This is network driven by your provider so I would suggest to check in with them and ask for it to be refreshed on your account, and perhaps if they do this ask for an OTA configuration and also check in any relevant Network app.
The setting won't show in your phone unfortunately unless your network activates it @StefanCelMare
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.