We aimed to hire a car with baby seats in Florence via rentalcars.com We gave 6 months notice . They emailed out a checklist which stated that one credit card was needed and also there was a link on the app labelled "Important information . Please read before picking up your car" This also stated that one credit card was needed. Pretty definitive right? Two direct communications one via email and one on the app. Well when we got to the desk of the company B Rental, they said we needed two credit cards. They also tried to sell us damage waiver insurance that we didn't need and then told us that they had no baby seats. So on two levels the booking was useless. Rentalcars.com refused to take responsibility for their inaccurate email and app communications and pointed us to the small print. Basically their communications are there to catch you out it seems. They offered us a discount without saying how much discount but also advised us to call well in advance to activate this undefined discount and also refused to say what "well in advance " meant. So therefore they were offering nothing concrete whatsoever. They have the worst communication and their customer service is shoddy and unhelpful in the extreme.