Sorry, I still can use credit card to pay even with the display is there.

Just take is this way : there's never been 10% of cash back to begin with.
From last year I already spend rm985 to get cash back, so 15*12, that's rm180 already, enough to cover the "lost". My AF already billed on the 1st

Why not? You just need to pay 1st half using other card in advance before the bill date and the rest auto debit. From last 3 months my Maxis has been due partially after the cut off date but nothing happens.
But TNB you can't do like this as they will charge penalty. For Maxis I don't worry as most of the time the amount due are always -rm.
Still wait for the actual revision then decide to continue use or just cancel it.

Don't worry, with this revision, HLB will get all the holes covered

I think I never state clearly, my bad, it is the other way round.

AF is charged on 1st.

The question is, when you applied the card? On April or March?
Mine are applied on March so they charge on this month.

Well, that's normal, is their SOP anyway.
If you still not spend on this card, just cancel it, else just too bad I have to say

I think only PBB's VS, like Maxis you need to use MaxisPay in order to get receipt(if you need the cash back). Others like Digi or Celcom I not sure.

Name : ********
Merchant Name : Maxis Broadband Sdn. Bhd.
Receipt No : 8714759
Item Description : Maxis Bill Payment for ***********
Amount Paid : RM 55.00
Payment Status : Success
Payment Date : 07/04/2016 12:38:54

This is what you will be getting once you pay using Maxispay, it will send this receipt to your e-mail account.
Because of you I have to pay rm55 before the statement date just to show you

Name : ********
Merchant Name : Maxis Broadband Sdn. Bhd.
Receipt No : 8714759
Item Description : Maxis Bill Payment for ***********
Amount Paid : RM 55.00
Payment Status : Success
Payment Date : 07/04/2016 12:38:54
According to this, I'm still getting cash backs as mobile.
But sometimes HLB do "missed" on this.

Yup, this is what an adult shall do, wait for the official revision before jumping in to conclusion. Blame BNM? Only losers do like this.
When my very first cash back card revised to 1% from 5% I do feel butthurted. But after thinking it back, it just a card's benefits and is subjected to revision as and when a bank feel is needed. So I get another cash back card and 1 year after, it revise again. Then get another cardlor, what is so hard?
Using credit cards is for our needs and convenience, just think that if you need to buy a rm6000 TV, you carry cash and get robbed, so you lost rm6000 direct. But with credit card, you no need to worry on this.
If we are getting credit cards just for the sake of cash back and push our self to get the max cash back by spending more, it is no point also, right?
Like now I'm quite famous in Tesco where the staffs even help me to fill the trolley with cartons of Milo but now my room are full with Milo cartons, all just because I want to get max cash back

Nope, pay in 1 goal.
I know you are trying your very best to insult me, but as John Crawley says : try again, boy
And I got 3 cash back cards for groceries, 1 blow still got 2 to go. Better luck next time.

If buy then sell, this won't be problem.

But Posonline still charge some fees, right?

Nope, banks will be happier if more people cancel their cash back cards. At least overall profit still can be maintained.

Nope of cancelling your card

Emmmm, this card never gives 10% of cash back in the beginning.

I fully agree with you on this, like last week when stock piling of Milos, I almost cannot claim free gifts, lucky they saw me buying 2 cartons only they agree to combine 2 receipts to get the mugs

On the HLB online portal you can compose e-mail to them.

You are too slow to enjoy the benefits
But I've been enjoying for the past 3 years, so not much issue, only a bit butt hurt as they charge AF this month
Still, don't jump in to any conclusion first and see what happen next.

Never jump in to conclusion as long as it is not official.
Cash backs considered as bonus and not what a bank must do.

It is still something for current bad economies. But only petrol and mobile I aim for rm50 per transaction, groceries won't really do so