HELP! I lost 2M USD by mistakenly sending aUSD to binance

I sent 2M aUSD to binance, Arbitrum Transaction Hash (Txhash) Details | Arbiscan

the icon of USDT and aUSD look very similar…
Is there a way to get the USDT back, please help!

only Binance is able to help you. They are the receiving party and the only ones to be able to retrieve your funds. No one here can do anything for you unfortunately.

Get in touch with their support.