This location was listed on the old map on Migros website with 2 connectors.
Chargemap and GoingElectric seem to confirm this information showing two m-way ebox chargers in an underground parking, listed as 22kW. The parking spots are numbered 43 and 44.
On GoingElectric there are older pictures where only one parking space was marked for charging, and on Chargemap there is a newer picture were a second sign was added for the second spot. The parking spaces were never painted on any of the pictures, they were only ever marked by sign.