Hertz at 1580 Ogden Avenue #345, Naperville, Illinois.

The worst customer service! I called to check the availability and rate on a rental. The phone rang about 15 times before anyone answered. I was then told that they were completely "sold out " for what I was looking for during the time period. I was about to hang up when the associate told me " can I place you in a brief hold". I agreed with the hope that he was going to check the surrounding area or try to help me out. 20 MINUTES LATER I WAS STILL ON HOLD! I hung up and called back only to be told " I am sorry about that we're busy ".
Seriously !? It is common sense and common curtesy to let the customer know what you are doing before placing them on hold i.e." May I place you on hold, I am with another customer", or "I'll will be right with you as soon as ______". DO NOT SAY you're going to put me on Hold for a "brief" moment when you have no intention of getting back to me within 20 min. Or say "do you mind calling back in _____ min!" Anything will be better than making a customer wait that long without knowing what is going on or why they are being placed on hold!
To "John" the sales associate not sure if it was your first day on the job but you REALLY need to step up your customer service skills or find another job!