Hi,
you used some maxstay and charge tags here that don't seem correct.
E.g.https://www.openstreetmap.org/node/7673202253

Checking the pricing scheme of the operator, there is no maxstay, but just a fee if you stay longer than a certain time.

Also, the price doesn't seem to be right for this high-powered charging station. 
There's no low-power connector available, so there's no charging below 0.78EUR/kWh possible.
The prices also don't change depending on AC or DC, but just on the power available.

Lastly, I would not tag the charging prices - they tend to change way too often and depend on way to many factors to be maintained in OSM. Just link to the very simple and concise document of the operator.


