I was adding a couple of personal days to a business trip to Miami Beach and needed a rental car. As a veteran traveler I know the off-brand rental companies, especially those off-airport, entice with low daily rates and then hope to sell the customer on add-ons such as insurance, GPS, additional driver, etc. I have personal auto insurance from a national insurance company (AM Best rate A+ - Superior) and have never had an issue with declining the rental car insurance. Well, I made my reservation online through the Economy Rent A Car website at a rate of $18.19/day for an economy car. After my meeting was over, I got to the Miami airport and took the train out to the consolidated Rental Car Center. Following the instructions given with my reservation confirmation, I called the local agent, Rent Max, to arrange to be picked up by their shuttle. Be aware that for any off-premise car rental you have to wait outside at Bay #1 which is not near any door where you can stay inside and see out, but it is covered by an awning. Anyway, the shuttle arrives after about 12 minutes and the driver is polite and assists all of us with our bags. It is a short ride to the rental counter. When I get to the desk the clerk asks for driver's license and method of payment. He then makes mention of insurance and I tell him that I had declined all insurance coverage as I had full coverage through my car insurance and give him my FL proof of insurance card. The clerk tells me that they only accept waivers from certain insurance carriers such as GEICO and this information was provided when I made the reservation and the cheapest they offer is $17.95/day which would essentially double my base rate. I told him this information was not provided to me during the reservation process as I would not have used them had I known that. He says that it was posted and he would show me. He then goes to the Economy Rent A Car website and clicks on the "Policies" page and then on the "Insurance" sub-category. He can never get the page to load, so he pulls out a print out of the page which does list in the fine print the companies they accept. I tell him that the link was never shown during the reservation process. He says it is and proceeds to go through mocking an online reservation to attempt to prove it to me. Well, the link never appears and he blames it on a computer problem, but says he cannot waive the company policy. I ask if there will be any fee for cancelling and he says no, so I ask him to cancel the reservation. I take the shuttle back to the Car Rental Center and proceed to get a car from Payless where my 2 day total bill was $58 compared to what would have been $90 from Economy. I intend to report this to Economy corporate, Miami Airport Authority and Miami Better Business Bureau as I believe it to be a highly deceptive business practice.