I went Korea last march'19. I use 90% of all the time. If im not mistaken, no need pin. If transaction more than rm250, they required you to sign on the digital tab (using stylus), something like that. Yes it is auto enable, no need to active.

If u had freeze the card as precaution, just remember to unfreeze (need internet/wifi) card before use. Last time i freeze it and forget to unfreeze, then got panic.. lol..

I think really GG for OCBC.

Mine normally will credited next day or 2 for 0.9% but today is the 5th day, they still haven't credited the balance 0.9%.

Yes. Bear in mind that OCBC can be inconsistent in its timing to credit the 0.9% cash back to our account. It happened a few times over the years already that the 0.9% cash back was credited up to one week after the 0.1% cash back. So just sit back, relax and continue to monitor your account 

Top up OCBC titanium card for bigpay
No cash rebate 0.9% to date. Anyone share same issue?