Unfairly conducts at bluu rentals

Horrible administration, i've hired a car pickup time was 09h00 and drop-off 10h00, I was helped at 10h45 and on revised contract they didn't revised drop-off time and I arrived at 10h00. Next thing I was charged for dropping off early hence it's not written on their contract. I complaint to their customer care they handed me over to their attorneys. Secondly they charge 2 customer for 1 damages when request to split the bill they refused.which means they already sharing the other claim.