Hertz Rent A Car

I rented car at the East Providence location and was not happy with. I called East Providence to ask if I could swap out the car and this location as it is closer to my home and on my way home from work.
I was told I could and that this location had a car available.
When I arrived after I got off the phone 15 minutes later, the place had a sign on the door that said they would be back in 15 – 20 minutes.
I waited 15 minutes and then called the phone number 4 times before I got a person on the phone. I told them that East Providence had called ahead and that I was coming to switch cars, and they said they would be back in 20 minutes. I had already been waiting for 15 and needed to get back to work. They offered no apology and simply said they weren’t told when I would be arriving. That’s absurd, it’s a business and it should be staffed during the hours they claim to be open. You shouldn’t have to call ahead to announce when you are arriving.
Avoid.