Jarek 🚲
Eaton Centre currently officially calls itself 220 Yonge and the building is tagged as so.

218 Yonge doesn't refer to any of the office towers either, the nearest is 250 Yonge.

For 218 Yonge see address interpolation on https://www.openstreetmap.org/way/401029400 

IMO this doesn't warrant a separate tag just for the one number