They typically DO NOT get permission to pull your credit. A very, very few, ask you to go through a credit check. Also, a few cell shops do. Otherwise you should be fine.
There is a way to get "misinformation" off of a credit report. You have to get a report (free) and then write to ALL of the CR agencies challenging the item. Unless they can demonstrate that it IS true within 90 days, they must delete the item. That's federal law.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.