For all with bank account in SG and/or with BigPay card, please write to BigPay customer support in MY to suggest a new feature ---> allow Malaysians to top up BigPay card with SGD.

Most SG banks have high markup for non-SGD transactions. BigPay already supports SG customers but Malaysian customers can only top up with MYR at the moment.

This feature will be beneficial for Malaysians with bank accounts in SG.

I did that myself but BigPay will only implement this feature if there are demands for it. So please write to them to support this idea.