Yes Geoff, one of biggest annoyances.
It caused the crash of a 747 in 1989.
ATC radioed to the flight, "Tiger 66, descend two four zero zero [2,400 ft], cleared for NDB approach runway 33." Captain Halpin, who heard "descend to four zero zero" replied with, "Okay, four zero zero" (meaning 400 ft above sea level, which was 2,000 ft too low)
https://en.m.wikipedia.org/wiki/Flying_Tiger_Line_Flight_66