Hertz review: car hire

Hello,
I was booking a car via Car Trawler a car in Riga/ Lettonie the 26/08/19
They wrote to retire the car at 10 o clock at the railway station - I was un hour late because I had unfortunately un obstacle. I did not worry to much because I thought that the (paid) car is rented and they have their agency on the railway station. So I thought the car is booked from 10 a.m.
I phoned them as soon as possible and the answer was that I can rent a new car by paying again (and to come to the agency at the airport)
It made me all the more marked as I booked (naturally) the next day with an other (by paying again) and they were two hours late to deliver the car (saying that is normal in Riga...) and I did not say anything.
Thank you for taking all this into consideration.
My reservation number was : LV421542040
With kind regards
Mr Kay BOROWSKY