From the CoinDeck homepage, click the REGISTER button (visible in the top right corner next to the login. You will be prompted to enter an email address, a password, and a 6-digit PIN code. 

You will then be prompted to verify your email address. Once you do so, your account is active. 

In order to begin making transactions, you will need to attain the verification level required for each transaction type. 

CoinDeck has three different verification levels: 1, 2, 3, 

Find more info on verification levels here.