HSBC has branches and ATMs all over Asia, where you can draw cash directly from your savings account and don't need the much more expensive cash advance via credit card.
The Premier Account is very expensive if you have less than HKD 1 mio. It costs you about HKD 380 per month!
The Platinum Card is also not free of charge. You pay for all those "perks".
My advice: get an entry level account that costs nothing and a Visa Card, especially when you still have to pay off loans. HK is expensive and with HKD 36K you can't get far.
True expats are different, they pay just 50k for rent, or lets say their company pays, and then they still worry about whether they can survive on 80k per month.