This is just about the best way of pursuing a complaint rather than getting into details of its substance. It's about having been sandwiched between the aircraft wall and an obese passenger, and its effect on my comfort and safety. I emailed Emirates about this through their online complaint form and, two weeks after no reply, emailed again to say I was still waiting on an answer. Then came a reply from someone in their Hong Kong operation saying that if there was an obese passenger at check in, the agent would have required them to purchase two economy seats or one business/first. Well, apparently the agent didn't and this amounts to a denial that the passenger was obese.

I replied to that on the same day asking for it to be escalated to a manager. That was two weeks ago and I've since heard nothing more.

What is the best way to escalate this complaint? Also wondering whether, if Emirates don't respond positively (or at all), I might be able to take this up through my credit card provider.