FYI

I participated in the RM100 rebate for 5 times RM50 swipes per week campaign ended in May
I noticed my name in the winners list but the RM100 was not credited as of yesterday. So I called customer service and they confirmed it should be credited by now. Today it's credited

I'm not sure if it's coincident or intentional. But I'd check every winner list for the campaigns I participated in from now on