It will be calculated multiple time. However, we tend to pay once each day. We don't want the bank to figure out we 'abuse' the terms and condition, and revise it, do we?

what is i pay utilities like TNB online?
does that consider as online payment or utilities?

Here you are
https://payonline.uob.com.my/payonline/Login.do

I am using this website to pay Syabas and TNB with my Hong Leong WISE.

havent tried "stacking" multiple payments for same merchant. you can do that meh? 

to be safe, pay separately.
*update: just checked uobpayonline, can "stack" payment but not sure treated as multiple transactions or lump as one. 

pump petrol 3x 10 SEN at the same station continuously?     May be should just pump 3x 1 sen.

Isn't that too much of a risk for qualifying for d weekend spend?

Free water is not unlimited. If you have a big house hold, you will still have to pay for water as you would utilise all the free water.

just wondering, if stack 2 transactions, do you get 2 TACs?

According to LostAndFound, no risk and nothing to worry, it is automated.

Yeah me too. The idea of spending more to earn max rebate defeats my purpose of using CC in the first place. I know you can buy grocery vouchers and others, but I have way too many vouchers in my drawer right now

Well I don't mind having it since it dont have annual fee or anything. I checked the website before. It looks like normal credit card to me but the agent said it's not debit or credit card. Confused me there   

i think hlb wise and hlb mach should be sharing same cl. i have both too.

yes. that's why timed your payment/swipes lor cuz almost all HLB postings is posted +1 day.

if you are targeting to utilize Sep cashback, today is your LAST day to perform the transaction(s), assuming posting is +1 day.

if you are targeting to utilize Oct cashback, then do it tomorrow so that it get posted in Oct.