Questions about Braun S3 Shave & Style

I would like to replace the trimmer head (Braun Bt 32) after two years because it no longer cuts so well. Can you add this spare part to your product catalogue?

What is the difference between the models Braun Series 3 3010BT Wet&Dry and Braun Series 3 Shave&Style 3000BT ? When I look at the pictures, some of the specifications are not correct?