Restaurant Piazza Gwatt in Thun - Telefonnummer, Reservierungen, Bewertungen

We stood in front of a closed door at 12:10 this Tuesday, despite Google info that it was open. Very embarrassing, we were traveling with customers. Addendum: two days later on a Thursday morning I called to inquire about opening times. I got fired from the line, there was no call back. Does this restaurant even still exist?