Carpet cleaning won't help, but I can give you a tip on wax removal if you want to do this yourself.
Set an iron on medium heat. Cover the wax with a brown paper sack or butcher paper, then place the warm iron on the paper. The heat should soften the wax and it will be drawn up into the paper. Move the iron to a clean spot of the paper as wax is absorbed.
Do not use to high of a heat setting or you run the risk of "setting" the red candle dye into the carpet fibers.
Good Luck!
"Resident Rug Sucker"
Edit: Oops, my post was late. I would follow the advice in Mal's post.
