Sixt Flat Nonstop CDW Insurance and Experiences?

Hi together, I’m just thinking if I should try the Sixt Flat Nonstop. Since I’m not allowed to choose SUVs as a company car, the Sixt offer has crossed my way. In itself, the offer fits, however, I don’t want to spend 140 euros per month for a deductible of 0 euros. I’ve already searched for credit cards that include a CDW insurance, but my AMEX Platinum has this limited to a trip or 60 days or so, is therefore no option. I have already researched for insurance on the Internet, since I have noticed so far only casAssure without day limit, wanted to call under the service number and ask if there is a time limit with the Europe offer, would the rental car have almost 365 days. Does any of you have a CDW insurance valid 365 days or has someone of you completed the Sixt Flat Nonstop and can report here about his previous experiences? Thanks in advance for your answers b Reports