I tried to pay my U Mobile bill through the U Mobile app but after entering the OTP, it returned an error:

Error 502 Bad Gateway

I thought transaction failed hence tried again and the same thing.

Tried on the Web then and it was successful. After few minutes, got sms another transaction is successful (from the App which returned an error)

Call CIMB and they said can't do anything. Need to tell U Mobile to refund to CC.

Now I hate this app so much.

THat is why what CIMB is doing is wrong and purely EVIL.  Maybank & PBB are more honest on this matter.

statenebt balance RM600
cash  rebate - RM30
outstanding RM570

why should we pay more when the actual outstanding already less?  THat's what happen when we want to stp using the card, we ended up having positive balance floating inside the card for no reason.  We are not getting the cashback in the end

Let's say you use the card again next month, let's say RM100, after pay the remaining outstanding of RM570, the actual outstanding is RM100.  So how can they charge customer on the RM100 that is not yet statemented?

So for the initial case above finance charge RM29 is according to the unpaid statment balance of RM30??  WHat is the % of finance charge?

I will cancel my supp too together with my principal card after I get my Oct cash back.