Visited on June 26 and did a short charge with M-CHARGE RFID.
My first attempt failed with an unauthorized error, but it might have been because I was holding multiple RFID cards in my hand it and might not have properly registered which one I approached to the reader.
The chargers are in the underground parking. It's a small parking, but still every charging space is designated for charging. It's a single loop, with the chargers immediately at the entrance, so they cannot be missed.
The parking uses the barrier-free payment system with 1h free. Based on the signage it must be a recent change.
The only closing time I saw was the small text on the parking payment machine saying 15min after the store.
They were almost all out of ice cream on that extra hot day.
There also seems to be parking spaces outside, so the space underground is not all that is available for customers. But no chargers outside.