Going around from a high altitude.
Quick question for the ATC pros. In our airline's current sim programme one of the items covered is going around from a high altitude of the approach. I recall once coming down the ILS to 09L at Heathrow when we were broken off the approach without the words "go around" being used. Is there a defined point at which the wording changes from "breaking you off the approach" to the full blown "go around"? Thanks.