"Official web site contains no mention of this office and nothing is visible from the street"
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2022-09-12T16:04:10Z
POI name: МТБанк
POI types: internet_access-wlan amenity-bank
 #organicmaps