Dear Sean,
Sorry for the late reply. We were on Eid Vacation from 11 May 2021 and were unable to respond to support questions and email queries.
Moreover, we are sorry to say that there is no option for text message(SMS). There has an option for Email notification.
Please check out this doc for the settings https://themelooks.net/documentation/plugin/foodbook/how-work-order-status-change-email-notification/
Best Regards,
ThemeLooks Support Team