INSURANCE COST ALMOST 3x the cost of the car hire

After a long haul flight, arriving early evening, and tired all we wanted to do was get on our way to my sister's home. <br> <br> After a long wait at the company's reception my turn came to be served. At that point I was told that I had to pay their insurance or could not have the car, and after debating the point I had 2 choices. Being rather tired and wanting to get on the road I reluctantly agreed to pay. My other choice according to the staff was to go to find another car hire company at that time of the late evening.<br> <br> Under this duress I had no option but to take out their additional cover, and when I returned the car I was presented with my invoice totaling 405.85GBP for 18 days, from 04 June to 22 June, 2015. <br> <br> This is ******ionate when the actual car hire only cost USD273.78 (approx 175GBP)<br> <br>