Thrifty Car Rental

I payed £240 like one month prebook... when I collect the car I was charged for Young driver fee 8 euros per day.... *I give my age when I book the car* but the counter staff told me that he will be give me better group car for free as a discount. He give me Seat ateca which one i chose when prebooking... also he told me that kid seat are incuded when he charged me 70 at the end...In total its cost me over £500 in total for u days.... not recocomending