Eligible to upgrade becoz fulfilled the spent/pay challenge. When ordering the premium card, the only option is Normal card, where is says "Choose Your card level", so I supposed can choose between normal and premium card.
Now to follow the normal way. Get normal first, then wait for premium card ordering to be shown
Edit, Yup this is the way. "Get Premium Card" appears the next day after I activated the Standard card.
Standard card annual fee is S$50
Premium card annual fee is S$200
Both card annual fee are 1st year waived, subsequent year need to spend 15k* annually, 30k* annually to get it auto waived.
*IIRC
In case ppl asked, these u cant find in TnC, only through the live chat