I'm going to use this thread to follow up on a ticket I opened at MEXC
I had already withdrawn all my funds from there after your warning hehehe
However, I needed to make a deposit of 111 dollars in USDT on the APTOS network and MEXC supports this network
I ended up depositing USDT (layerZero) which is a bridge token, instead of the USDT that MEXC uses, so the deposit was “lost”
I opened a ticket and they answered me very quickly, within 2 hours they told me to confirm the deposit address and they would get back to me, but it could take up to 2 months

I'll wait and update you when I have new information.