Upgrade PT8LE Mbox3 to PT11

Hello,

I need to upgrade my Pro Tools 8 LE from my mBox3 to PT11.

My problem is that I don't have ilok since the licence is from the mbox.



How to do the upgrade ? Do I have to buy an iLok ? How to transfer the license from the mbox to the ilok, to upgrade to 11 ?



Also, I registered my product in my avid account, but nothing appears in "my downloading etc"



Thanks if you can help me. I used to manage HD and pro gear, but nothing is the same with this little sound card :-/