Monitronics Customers For questions or to request service to your alarm, contact Monitronics to open a service ticket 866.664.8766 Security Central Customers For questions or to request service to your alarm, contact Family First Security. 803.764.1923 info@familyfirstsecuritysc.com Alarm.com Customers For existing customer’s service or help with user setup, contact Familv First Security. 803.764.1923 Alarm.com FAQ