This is due to the diff merchants speediness of processing payment.

do not confused between credit card's history (hlconnect) vs merchant's history.

when you made payment to DIGI on 1 Aug, the "shown in history on 1 Aug" <--- inside digi history or hlconnect?

payment made to digi (or maxis or umobile) will be reflected immediately, however the updates in cc account/hlconnect may take few days to be updated. reason: per MGM's above.

thus, petrol swipe on 1 Aug, may take few days to get posted in cc account (note: hlconnect will be reflectedd the next day).
another way to know if transaction already posted is to observe the reduction of Credit Limit amount.

if still worried, call CS to verify the status of the petrol transaction.

calendar month, 1-31st.

IBG or instant transfer, just like when you are transferring money to other account but key in your card no.

CB for July should appear in your September statement. August cash back is only on September 28th. Are you a new user of Wise?

I am still considering. I can move my insurance to WISE (just hassle on my agent side) and lose CB earned under essential. The advantage of this new feature is, no need to split TNB anymore.