Pray that you dont ever have to deal with customer service on a billing issue. Ive had a credit from Cintas on file for 6 months. Despite MULTIPLE attempts at resolving it, the check magically gets returned in the mail (however, I keep getting monthly statements showing my credit). And since there is no way to contact the corporate office, youre simply out of luck.
Be aware if you get Cintas Service there is a 7 years contract without any notice