There's still no picture or clear name for this location in Swisscharge app, just "Bahnhofplatz 1a Wallisellen".
The pictures on &Charge and Google Street View confirm the chargers are in the "Zentrum Wallisellen".
There are 4 green EV parking spaces in the underground parking, numbers 02-28 to 02-31. 02-28 is a larger spot with handicap sign. All have attached cables.
On The June 2022 Google Street view images we can read a sign "Kundenparking ab 23.15 geschlossen" above the entrance. We also see there's an EV icon next to the parking sign.