Once I got nervous ‘cause my transaction stuck. I contacted the support and got the answer soon:<br/>“The speed of a single cryptocurrency transaction may last for a few seconds to a few days. There’s really no telling how fast a transaction is since there are different factors that affect it. These factors may include the type of digital coin involved, the current user volume, the amount of digital coin being transferred, type of wallet or exchange use, availability of servers, and internet connection, to name a few.”<br/>In 2 days the transaction completed. Thanks, HitBTC.