This is pretty straight forward, if you're not a Hotlink subscriber then buy the starter pack for RM8.80 and then pay the respective price of the iPhone. Then you can use it right away with any SIM from any telco, but the 500MB is only for active Hotlink/Maxis subscribers.

@rapster88:
i'm not sure about other banks but i'm pretty sure Maybank's debit card is not allowed for installments purposes. for installment plans, it's advisable to use a credit card.

@oerdri5:
if you still haven't receive it until now, call up Maxis CS. normally, the confirmation SMS should be receive within the first few hours (that's in my case).

@NutterButters:
from the first page:
minimum top up of RM10 per year is only valid for Hotlink Youth Club subscribers.

For normal Hotlink users, subscribe to Hotlink 365 and pay RM63 to maintain validity (ie. active) of the line.