Can I use my Skywards Miles to purchase Silver or Gold membership?

No, Silver and Gold membership must be earned by accumulating tier miles when you fly Emirates.

When I move up a tier, how long do I retain it? For how long will my card be valid?

How can First Class and Business Class bonuses help me to reach Silver or Gold status more quickly?

Are all Emirates Skywards members allowed to spend their Miles on upgrade rewards in any cabin?