Life-Time Subscription

[Bakes80]

On the Subscription is there a way to make it say lifetime.
and have the subscription last forever
My only option at the moment says it will last 22years or 24 years.
I'am trying to give a lifetime membership to users, and that it will change their usergroup to premium. How do I set that up with the subscription, so it could be done automatically and not be limited to 20 years

[fxdigi-cash]

that is odd. I just checked the length of time box and could make it 10000 years. so this is for me like a life time subscription...

I don:t think there is another way unless vbulletin add it as a built-in feature...