In what sense does your quote confirm that Israel is engaging in collective punishment? Israel believes it is rooting out Hamas and that there is an embedded civilian component to its operation (which is unequivocally true). This is the problem with taking three sentences out of someone’s mouth and deciding they support an idea as broad as “collective punishment.” Perhaps you should understand the context of his words before you use them?
In any event, you asked for one time Israel brought a complaint to the UN and I provided it. Please don’t alter the goalposts you yourself set.
What was the UN’s response? Was there an intervention? A censure of Hezbollah or Lebanon? An investigation?