How can "turn left heading 180" repeat "turn left heading 180" POSSIBLY be taken as an instruction to climb to anyone with even the most rudimentary of aviation English.
Happens on a regular basis. I have filed an Airprox based on EXACTLY that.
Perhaps when you are cruising at FL330 it is different...but when you are down and dirty and there is traffic descending ONE thousand feet on top there is little margin for error.