I am unsure where you have seen this possibly when trying to reset your network settings ? It would be best to speak to the chat team who can checker your account and assist with troubleshooting https://smarty.co.uk/contact available daily from 8am – 8pm.
@Bill766448 If you are looking to connect with a Smarty sim, you can set the phone to automatic network selection. If you are on manual selection, you should see 'Smarty' as an option.
