The address I was sending to requires exact amount 0.01001012 BTC, says system will ignore the transaction if not exact. 
I used the exact amount to send, but seems my wallet omitted the 0.00001012 and just sent 0.01 BTC. And shows completed on my wallet end.

But the receiving address side never received the amount. And I checked the transaction ID 93c4c7f34029a0464bf418a518809e6c534e7c28d34d7120c0f1c0c27d0f41c5  it seems there.
https://blockchain.info/tx/93c4c7f34029a0464bf418a518809e6c534e7c28d34d7120c0f1c0c27d0f41c5

Why is that?  And what should I do?  Is the amount I sent in the air and can I cancel the transaction and get it refund to my wallet?

Thank you very much! Appreciated!