CL-350 Captain reported encountering wake turbulence on approach and opted to fly above the glide slope to avoid the effects of the wake.

Narrative

While on final approach after being cleared for the visual to XXL a wake turbulence event was encountered at 3000 feet. Tower was tied up for the radio call and we got a pretty good bump so I recommended to the PF to climb 200 feet and stay above his flight path to remain above the wake. We knew it was an A330 6 miles ahead so we opted to continue on the approach and remain above the glide slope having 11000 feet of runway available to us and being on a visual approach. I asked Tower at one point to slow and advised that we encountered wake turbulence but the request was denied…we continued down the approach and encountered a little more turbulence but remained stable (just above the glide slope) the entire time. A smooth and safe landing was made on XXL. Unable to establish communication quick enough with ATC made us opt to climb 100-200 feet from the 3000 feet approach clearance. Also the wake turbulence from the heavy jet and possible separation issue. I'm not sure if it was preventable. I'm sure ATC had adequate separation; we knew we were behind the traffic and tried to maintain our position appropriately.