Rude and unreliable service

I booked a rental car on the German Expedia website and received a booking confirmation in German language stating a binding price of ~R200.<br> <br> When I arrived at the rental station, I first had to wait for around 40 minutes in order to speak to a consultant as the queue was very long and there were only three consultants on duty.<br> <br> As I could finally present my booking confirmation to the (obviously quite new) consultant, he asked a lady (who was very offensive and speaking bad about previous customers in front of everybody) on what to do as the confirmation was not in English. I was then told I would have to present an English translation of the confirmation sheet. Then I was forced to speak to the Expedia callcenter on behalf of Thrifty after the consultant gave me his phone.<br> <br> Eventually (after 1h) I was told they will accept the booking and charge me the amount as stated on the confirmation. However, the CC payment slip stated otherwise. On request I was told that they cannot modify the price on the system according to the confirmation but I would only be charged the correct amount.<br> <br> Today I received my CC invoice and Dollar Thrifty has charged me ~R300 instead of ~R200.