Sixt has continued to tell rather wild mistruths to the credit card company in an attempt to fend off the dispute. And, thus far zero help from the rep in this forum.

Time to bump the 'ole tweet again. Really, really disgusted with Sixt, I've never personally had a company behave quite like this, where the facts were so obvious and provable and the customer treated so poorly. I know, of course, that it happens all the time (and pretty frequently with Sixt in Germany, seemingly,) but I've never experienced anything like it in 20 years of frequent travel.

https://twitter.com/xJonNYC/status/705946706660204544