Visited on May 20 without charging.
There are 2 parkings, one is outside in front of the store along the main road. The other is underneath and accessed from behind.
If you enter the top parking, there's a little EV sign next to the entrance. I noticed it too late while leaving so don't have a picture. It doesn't seem like there were any other EV signs though.
When you enter the underground parking, you have a clear view of the entire floor, and I was wondering where the charger was. It's the only spot you cannot see from the entrance, immediately to the left between the car and foot passage.
There is no gate, and no payment. M-CHARGE app says it's open 24/7 and it seems to be the case.