How frustrating!I’ve replaced the turn signal switch,bulbs and relay fuse.Hazards work and everything else,just no signals.What am I missing?? Thanks 
The turn signals usually run through the emergency flasher switch so try cycling it afew times to see if that helps. If that doesn’t work then I suggest you get a wiring diagram for the car so you can check for power along the path to the lights. I asume the brake lights are working ok which usually share the same bulb as the turn signals.
Well if the hazards work it’s safe to assume the wiring and the bulbs are fine. My first guess would be the turn signal stalk itself.
Mike