How do I request a refund for Itunes Match?

I purchased Itunes Match, within 12 hours I wanted a refund. All of my music started to have wrong album art. I would play a song, but a completely different song started playing. In order to fix it, I had to delete all of my music and load from a backup, restore my iphone, etc... Needlesstosay, frusterated... I think Itunes Match will someday be a great product, but until that day. I am fine with manually syncing.

I tried clicking on "Report a Problem" in my Itunes account, but it only takes me to a help guide on Apple's website. I cannot figure out how to request a refund for this. I feel like I paid Apple $25 to screw up my music.

Any help is appreciated!