I sent from Poloniex $380 of USDT to my Coinbase USD wallet.  It arrived as only 0.0000273 BTC  What should I do? Is there anything I can do?

Thank you everyone for any help that you can provide. 

Complete   USDT   380.52885526
2017-04-14 00:20:31
Address: 15vn9bqkVQirrHWMyNKPWkZ4JShErTWDCd
Txid: 63e0b42ef42c20d781f77472ce299f83d52100e6ca6ccc04374159d517506719