well, a dealership will not repair a bent rim, they will replace it...You need a wheel repair shop for that. If its a stock rim you may be able to score one at a salvage yard. Call the dealership and see how much the rim is first. Some are cheap and some are outrageous.
if you hit the rim enuf to bend the lip you may of actually warped the inner side of the rim outside looks perfectly round but when they spin it on a balancing machine you will see the warp around the inside.. I've never opted to repair a damaged rim I eiter make them into spares or scrap em and get another
I curbed both passengers once after being cutoff I took a hell of a chunk of aluminum off both no dents but when i went to replace them to winters they refused because they were both badly warped on the inside and they showed me (I bought 2 rims off these forums for something like $40-50 a piece and there like brand new and even came with 2 almost brand new tires )