Activation issues for MS office 2019 for mac

Now this office suite(mwitu) has been running smoothly with no pestering for activation or log in until about 3 weeks. First of all excel started misbehaving in a weird way. You input say 5,000/= when you move away from the cell it makes it 50. Formating the cells and doing all sorts of cell edits did not eliminate this “bug”. Left with no option but to do a clean install I realized it could not activate thereafer. Several deep uninstals and reinstall and the mf still does not activate.

Anyone with a work around so far?

Just use numbers.Nilikimbizana na office nikachoka.Excel is way better but numbers get you there eventually without half the stupid space