You must convert your no contract plan to a 24-month contract plan within 24 months of service activation.
Malaysian subscribers : upfront fee will be used to offset the bills via monthly rebates of RM50 depending on the plan that you subscribed initially.
For non-Malaysian subscribers : the upfront fee will be used as the RM500 foreigner deposit. Any excess balance will be used to offset your bills via monthly RM50 rebate.