How to reach the installer

my appointment has been set up 5 days. took today off for install from 12-4. rec'd text they would be here 1:45 - 2:15 at 150 rec'd a call from the main office stating the supervisor (i am assuming in the field) doesn't have anyone to come and need to reschedule for 2 more days from now. 

how do i reach someone now. the lady on the phone said she works from home and can only email him even though he called her hmmmm