Reubenray, I'm surprised and upset for you. It's a shame what some auto shops call service nowadays. I'm sure any competent mechanic could easily do the install. I would not be going back to them after you get this straightened out. Good luck getting this done correctly. Let us know how this ultimately turns out.
Steve & Nancy
2005 Itasca Sunrise 33', W20 Chassis, Ultrapower, Henderson Trac Bar
2012 Chevy Captiva Sport AWD, ReadyBrute Elite Tow Bar, Blue Ox Base Plate, Protect-A-Tow