SHUTTER SPEED ISSUE

I imagine this is not solvable on line but ..
The shutter speed toggle switch is not working. When I toggle the switch it will not choose a speed, then a few moments later it will "catch up" and set a speed I think is relative to the number of presses of the switch - sometimes. Right now I am trying to set to 120 fps but it will not move beyond 60 - but - a few minutes ago it was at 900 fps. I am guessing this means a factory repair. I wish there was another way to choose SS. Anyone know where the nearest repair is to Vancouver B.C. or whether an "off brand" camera repair could fix it?
The shutter speed toggle switch is not working. When I toggle the switch it will not choose a speed, then a few moments later it will "catch up" and set a speed I think is relative to the number of presses of the switch - sometimes. Right now I am trying to set to 120 fps but it will not move beyond 60 - but - a few minutes ago it was at 900 fps. I am guessing this means a factory repair. I wish there was another way to choose SS. Anyone know where the nearest repair is to Vancouver B.C. or whether an "off brand" camera repair could fix it?