Swisscircle, thanks for your understanding on the issue and rational approach.

Seawolf, I think you might have misunderstood my complaint.

First, I did not complain about not being able to take PTMR to Poland. I was not happy with the fact that modifying our reservation from a certain class of vehicle to a lower one rose the price of the booking by 50% ( from CPMR to ECMR, from 100 EUR to 150 EUR). And no thank you, I will not break the legal agreement with SIXT and drive PTMR to a non permitted country, but that's just me.

Regarding the contract agreement, I believe a foreign customer with a non German passport and communicating in English with a German employee should not have to specifically ask for documentation in English, that's what good customer service is about. My boyfriend presumed this was simply not available and that would be my natural conclusion as well, seeing as this was not offered/suggested.

I have also not complained about the system not recognizing my intentions through comments field, that is quite absurd. But why not implement a check list in the booking where the customer marks which countries he will be driving in and if that choice does not compute with the class of the vehicle requested, a pop up window would suggest available classes. Simple, doable and time saving both for the customers and employees who do not have to spend time modifying the booking and reaching out to the customer later.

Now if you still think I was unreasonable, that is of course your right, I will however allow myself to think otherwise.