How do I enable iPhone without erasing everything? I know my password.

Phone is disabled, don't know how to enable without deleting. BTW did NOT enter passcode incorrectly more than once: alarm went off this morning, picked up phone to turn off, entered passcode ONE time, and got message that IPHONE is disabled. Alarm keeps going off. Can't have support call me because phone in do not disturb mode because I was sleeping. Please help.