I know it isn’t that easy as there are some complex problems and supply chain problems further down the line but just getting back to people is a start
Exactly. It may well be that the root cause of many of the problems are not within MMC's control - in which case they need to get their customers to understand and forgive rather than get annoyed and in the worst case litigate.
Frequent, open, and honest communication is the way to achieve it. Clamming up and pretending there is no problem will simply make things worse.
