To all readers, the previous content of my post which I blogged about how one could spend $50 to achieve 10,000 krisflyer miles is no longer valid because AMEX has changed their referral T&C from 10 October 2019.  New Condition
So for those who had signed up from 10 October 2019, your Krisflyer accumulation miles are as follows:

a) Your first charge to the Krisflyer card will yield you 5,000 KrisFlyer Miles (provided this is the first time you own and have charged to an American Express cobrand Card)

b) However if you wish to accumulate the next 5,000 Krisflyer miles, you will need to spend $1,000 within the first 3 months of the date of the card approval.

This will help you earn 10,000 Krisflyer Miles in total. Please take note. Should you just wish to get part a), just charge a small amount to earn the 5,000