Whatever they are doing, it seems they do not have the manpower to process your ticket faster. So the only option is unfortunately to wait a bit longer.
Imho, them taking so long is not due lack of manpower but simply due them not giving a fuck much, knowing that they can drag this on as long as they want.
I had a relatively similar problem with Binance few years ago and it took me more than a month of constant pestering to finally get my withdrawals unlocked (it was their subreddit team that managed to expedite my case and sort it in a matter of few hours). So in the end it was just a matter of reaching to someone who actually wanted to help.