Yes! You can. You can avail Facebook Tech Support on Sunday even on public holidays. You can get the right solution to your problems in an efficient manner. To get the support from the experts, you will have to call at our toll-free helpline number 1-850-316-4897. Our toll-free remains active 24 hours a day to help you. For more information visit: http://www.monktech.net/facebook-technical-support-number.html