The  requested unconfirmed transaction will be confirmed within 30 minute (for highest fee), however this may take some more minute if there is high congestion on the bitcoin network. 

Please Note: 

If your transaction has many previous unconfirmed input or does not include minimum fee of 15 sat/B  then you may be requested to pay higher fee , so please leave your Email id for this kind of transaction, so we can contact you .

Email : [email protected]