From the faq:
Can I upgrade my purchase to receive access to the Standard Beta phase of Elite: Dangerous?
We do not currently support upgrades to the Standard Beta version of the game. However this is something that we may explore in the future.



Why?I'm trying to upgrade and I can't do anymore. Yesterday was possible to upgrade, not now?
Can I upgrade my purchase to receive access to the Standard Beta phase of Elite: Dangerous?
We do not currently support upgrades to the Standard Beta version of the game. However this is something that we may explore in the future.
Why?I'm trying to upgrade and I can't do anymore. Yesterday was possible to upgrade, not now?