I applied 01/02/17, go the card on 07/02/17, hit the spending for reward by 20/02/17.
I only got the 100 k premium ascent point on 26/05/17 after chasing after it over the last 2 months via online chat ( x 5 chat about it over 2 months).
I also think Amex is now quite strict who to give welcome...