The only way to prevent duplicate transactions is ask them to reprint the first transaction, do not let them reswipe again. A very simple step
Remember, they have customer service section to handle problems after the cashier, so make full use on this, regardless of Giant, Aeonbig or Tesco.
BTW, I think we shall not use the term swipe as now they are inserting our card to do a transaction.
So after 1 failed transaction, do not allow them to redo until they reprint that terminal's last transaction to verify your card is still not being charged   Simple only right?

I thought when we submitted dispute form through bank, the chance should be high? Bank has the responsibility to investigate and contact this with merchant.

I have personal experience with ocbc bank. I bought phone online, and after a week it shows double charge in unbill transaction.. I called merchant, merchant said they only charged once, then I called bank, bank just asked me fill up form only and I no need to pay that disputed charge until investigation completed...few weeks later received called from merchant said sorry for the double charge and then also received call and letter from bank stated that investigation completed and charged will be reverse..I check through online unbill transaction there is a new reverse charge..

Another experience on last month when I used wise at my hometown path lab.. The cashier swiped the card, and it hang there, but I do received a sms.. The pathlab boss asked me go other place first and come back later as they will contact bank on this..after 1 hr, they called me said the charge wouldnt post to bank, and ask me come back n pay by cash..I called wise cs, and they said the charged go through, but if merchant didn't submit, it wont be listing in ur statement, they can't do anything to reverse it, asked me wait 7 days to see whether it posted to my online statement or not.. I paid the merchant by cash eventually..that charged txn amount will be deduct from ur total limit initially, after 1 week I noticed that it add back to total limit and didn't charged in my online unbill transaction

RM0.00 AEON Credit Trxn Alert,Trxn fr Cd ending-xxxx MYR79.25 at COLD STORAGE-SUBANG 2015/12/20 16:00 failed.If u did not perform, Ctc Cust Care

points going to expire, any way to carry forward?

So the question for this transaction is, did you signed that slip?
If not, sure they can't get payment.
Credit card are for our convenient to replace cash, but then we still need to be very careful.

So now you are trying to say they still can charge to your card without transaction slip, that's good
Maybe you are trying to convince people that they don't settlement daily and claim from card issuer once a month or weekly
Still, you can't deny the fact that you never check properly and track your spending, which lead to this problem.
A lot of people are getting "double" transaction daily but why not much people ended up like you? Is because they call CS and make all the necessary steps to prevent this.

Well, if I never be a cashier before, you may able to cheat me.
But sorry, I've been 1, even for a short period of time.
If I lost the slip, worst case I need to pay for it. Sorry, your lie are busted again.

I am hoping for a no fuss cashback card as opposed to Mach and Wise. Maybe for petrol and Dining.

This card come with complimentary Access to Plaza Premium Lounge but limited to first 250 Cardholders, first-come, first-served basis.

AF need RM424 

that stupid aeon big charged me double for a declined transaction again today! and the sms alert came 10 minutes after i left the place!

which outlet?

just report to HLB CS will do..

Yup... Either a faulty terminal or a lagging network will cause a transaction to be decline on the merchant side, but registered as an approved one on the card issuer side. So when they attempted a second time and the trnx is approved, naturally sudah double billing lor.

Happened to me before, using other card.
They swipe twice and terminal shown transaction fails. But actually it did charge the card.

After that i decided to use other card. So imagine for 1 item they charge 3 times.

Luckily the taukey can kawtim amd dont want me to report to bank. They just refund me in cash..haha

Extra point n cash back for me during that time.

Just checked my statement. I didn't get cash back for Jaya Grocer Al Fresco dining under groceries. Kinda expected it; was trying it out for the heck of it. Anyway, got the full $100 cb for this month.

Do you mean the categories column? It's blank.

why do so? got contest for hong leong bank?
and mbb amex card I think no more rebate for grocery.. why use the card?

i done my 10xrm50 within 1minute in payonline...every month

I just received my first statement today and to my horror, the 10 transactions of RM50 each done via UOB pay online for my TNB bill were not categorized under Utilities, which is one of my selected categories.

Has anyone experienced this before? Did you get any cashback? Thank you!

I changed from OCBC Titanium to HLB Essential half year ago... Now need to find new card again.. tired leh need to change all auto debit...

Just a question to all sifu on wise card..

Does payment at pos malaysia for utility such as syabas qualifies for 10% rebate?