Two things that I failed to understand:
1. You guys clear your inbox? Why? You use that email address both for personal and crypto so you need to keep them clean? It's personal preference though, so I can't comment further, just curious why bother cleaning your inbox.
2. Not even 1 tx proof, or screenshot or anything, left in your possession? Alltily indeed asked a deposit confirmation email, but the way I see it, that's not necessarily all 1,118 deposits. They just ask for an email showing that the address --a static, non-changing address that they dedicate for you-- is yours. One is enough.
If I may add a third one, is the PhoenixCoin platform has a fund history? Like a proof showing a token successfully mined or moved somewhere? If they have, maybe you can use that.
1. Yep, I keep it tight. Never felt like I need to keep every single deposit, withdrawal, login email.
2. There could be some left in trash, but they were long gone by the time when Altilly announced those emails were must have.
3. PXC is a Bitcoin fork made in spring of 2013. Probably one of the first 20 coins ever made. Sure there's a working wallet, block explorer, etc.