I deposited SYNX into bittrex to dump.
Deposit never showed up, never replied to my ticket...
It's been like 4 months

Also want to add. My account is over 5 years old and verified.
I sent like $10 of SYNX to test. And nothing.

Luckily I don't keep any coins on my exchange. I have at most 1 Monero on Bittrex.

The old crypto adage, if you don't hold the private keys you don't own'em.