Question on Xbox elite controller 2 being able to get refurbished.

So I bought an xbox elite controller 2 not too long ago and I want to get the plastic on the right and left bumpers replaced as well as getting the controller joysticks undusted since I think that’s what’s causing the small amount of stick drift when I press the left joystick down. Do you guys do this, and if so how much will it cost?

:)