أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
From experience, most companies choose to deal with it privately and directly with the user/consumer, sometimes they try to take a public approach but that could go wrong sometimes because others participate in the conversation without known the facts.
Who has to approve it ? Well, I guess it's either Marketing or Community departments based on the nature of the company and it's structure.