Queues, Delays and Wasted Time at pick up !

Pre-booked the car with all the required information and joined the priority queue at the Sicily by Car rental desk. There were 2 agents dealing with rentals but it still took over 1.5 hours to get to the desk ! When I got to the desk they had run out of car keys; 1 agent went to source more keys and the other agent went for a break. Following a further 15 to 20 minute delay I started the paperwork. eventually after nearly 1.75 hours we were given our keys; nearly as long as our two hour flight from the UK !!! As a family who had pre-booked this wasn't a great experience. Additionally I had pre-booked two child seats which the agent appeared to know nothing about, a call was made an I was told there would be two seats in the vehicle. On arrival at the vehicle pick up there were no car seats in our vehicle, another 20 minute delay !!! come on Sicily by Car get your act together.