Originally Posted by
ZKOKA
Yes, you do have to reply and accept their offer. The 4 months challenge period will start once they received your answer and upgraded your account to Gold.
Thanks. Did that today, got a reply 15 minutes later, and my status has been upgraded to Gold. Valid until 30/09/2013. On hindsight, I should have waited for that reply just a bit longer (until right before my next Oneworld flight), so the status could have lasted a bit longer than to september, and giving me more chance to retain Gold.