i will just put my tupence in, and ask have you made sure that the relay is working fine, as you say both the hazzard's and indicators are not working, i don't know anything about your model of car, but i would of thought that the hazzard's / indicators would be wired separately but they both run back to the same relay, and i say that as in the indicators work independently of the hazzard switch and vise versa, but share the relay in common, but as i said above i am not sure how your car is wired so prehaps it could be the hazzard switch at fault but i would get the relay checked
HTH
Beyre83