To Agus..
In a bonus program, there will always be withdrawal terms and conditions listed. My advice is to revisit the bonus information page and then read the terms and conditions section.
It is important to note that the safest way to use a broker bonus is to understand all the conditions before you participate in the bonus. However, if it's already like this, it's best to study the terms and conditions again and then follow the rules. As far as I know, all InstaForex bonus programs always explain the terms and conditions, but you may need to scroll or click on a specific section.
If you want to get information in an easier way, you can alternatively contact InstaForex broker's CS directly.
Thanks.