QUOTE(victorywp @ Dec 24 2015, 11:34 PM)
yeah, i received twice. things like this happen on and off. but
usually they will only charge once based on the slip that i sign, while the other will be cancelled since there is no slip and no signature. that's why i confirm the problem is from aeon big. further to confirm this, aeon big posted my earlier 3 transactions without delay, while this fourth transaction of mine was posted late and twice.
Thank you very much for your clarification.

As you explained, the second transaction will eventually be voided, since there is no slip and signature.
If you had some free time back then, I would like to suggest that you call Hong Leong Customer Service to notify them about the double transactions, on that very day of the transaction. Even though the same amount of money has been charged twice to your credit card, both of the transactions would have different 6-digit approval code.
The Hong Leong Customer Service Officer would have given you the approval code, of the second transaction that is without slip and your signature. With the approval code, you can approach the chief cashier of the AeonBig to void the transaction.
Mention to the chief cashier that the approval code for the first transaction with the slip and your signature is totally different from the approval code for the second transaction. Emphasize that AeonBig will receive money from the first transaction, and they should void the second (incorrect) transaction with the approval code you give to them.
Once they void the second transaction, a charge slip showing the voided transaction will be printed from the AeonBig credit card terminal. You should sign the merchant copy, and you should then receive the customer copy of the charge slip.
This is how I would solve the problem on that day. Maybe the credit card experts here can recommend better ways to solve this issue.
Using this way, the merchant (AeonBig), the acquirer bank (Maybank who supplied the credit card terminal to AeonBig), and card issuer bank (Hong Leong Bank who give you WISE card) are duly informed of the double transactions on that way. In my opinion, it is better than to wait till your credit card statement is generated. By then, it may be too late to void the second transaction, if this second transaction is not automatically cancelled by then.
It is just my opinion.
This post has been edited by kart: Dec 25 2015, 04:21 AM