1. Сlick “my account” icon in the upper right corner - you will see “Not verified” button (click on it). 

2. You should complete your personal profile In the “personal information” menu.

3. Next step is filling in your payment account information.

4. After it you have to wait till your verification ticket is approved.
Please, check your e-mail, shortly you will receive a letter with the next instructions and information.