Never rent with right cars

I was at the Right Car counter, and I signed the contract. And soon after the representative took it back and tore it saying he was cancelling the reservation. I was asked to show my insurance which I did and he claimed the liability was not enough. I have attached a copy of my insurance and as you can see it has 100/300/100 limit, so I was trying to find out where is my insurance lacking the coverage and asking for an explanation. At no point did I ever refuse their insurance. And in fact even agreed to purchase it. The representative just decided to cancel the reservation with no value reason and ask me to leave. I had prepaid the entire amount of reservation and was told I would get no refund. I see no fault of mine in this and the least I deserve is my money back. Not to mention this caused me a lot of inconvenience, wasted my time, and I had to end up looking for another car rental which costs me a lot money. I had never ever experienced such terrible car rental experience in my life before.