The trick is to become so incredibly annoying that some CxO / VP is going to bump you ahead in the queue and assign a dedicated customer experience manager.
Personally, if a bank were to steal $180.000 of my money, a few weeks in I'd probably start considering sticking "Chase is a criminal organization" posters on the doors of their regional headquarters, or getting tickets to industry events just so I can ask them at the Q&A where my money is. They may think "computer says no" is an acceptable answer, but that doesn't mean I can't make their life a living hell too - so why not make my problem our problem?