Took my car in to get what I was, 99.9 percent, su...

Took my car in to get what I was, 99.9 percent, sure just a dead battery replaced, or at the very least tested. After an incredibly brief electronic diagnostics exam I was told my battery was absolutely fine. The problem, supposedly, was my TIPM, aka, power module, aka fuse box. This is a 1500+ part before labor. So the price tag came out to just over 2,000 dollars. Well, of course I chose to get a second opinion. To make a long story short, I took my car elsewhere. After they listened to what I had been told by Pepboys, this dealership was wildly skeptical, to say the very least, that the issue would have been the power module, since the symptoms my car had were more reflective of...WAIT FOR IT...a D-E-A-D, dead battery! Plus a loose and corroded starter cord. Before labor, that is roughly a 300 dollar, or so issue. 300 vs. 2,000! So of course I go through the whole process of confronting Pepboys about the issue. The manager says call corp. after trying to offer me a free oil change, (as if I'd let the people who tried to jip me the first time touch my car again). I call corporate to get the 53.00 dollars I spent back for them to "diagnose" my car. I was instructed to wait 48 business hours for someone else to call me, to try and come up with a "solution" that works best for me. So basically they can try and snake over 2,000 dollars out of my pocket, but can't cough up less than 60 when they were clearly in the wrong???