Info about Gas
For each transaction on the Ethereum Network, a small fee (Gas) must be deducted from your Ethereum wallet. Gas is calculated as Gas limit * Gas Price. In times of the network congestion, when the number of transactions, waiting to be confirmed, is very high, only transactions with high total gas will be quickly confirmed, others will be pending. In extreme cases, transactions can be pending up to several hours or even days. You can greatly influence on the speed of your transaction’s confirmation with raising the Gas price. You will find a slider in a top-right corner of the webpage.


Few words about gas if you want the transaction to be quicker. Also check https://ethgasstation.info/