boxer

I had the hardwood store I buy my exotics from to mill some lumber for me. They did a really terrible job planing. I get a pretty good discount on my lumber, and they don't charge me for the milling, so I don't want to mess things up by complaining. But, a few of the boards they planed taper off to one end & one edge. I was wondering what I would have to do to straighten these boards out on my delta planer. Any advice would be helpful.
Thanks,
Kevin