Should I top-up my EZ-Link card with my OCBC 365 credit card or just stick to the normal way?

If OCBC 365 CC gives you the rebate, you can just use it for top-up straight away.

I’m not too sure if you can use GrabPay to top up your EZ-Link card. But one thing you can do is to link your CC to GrabPay, that way you get CC rebates too.

Hope this helps! Cheers