Hi boss, it is only worthwhile to reload on the first days of each campaign week.
The cashback is normally depleted within 10 seconds after midnight of the FIRST day of each campaign week.
For example
The current week is: 12-18th April. You can assume that the cashback is already depleted within the first 10 seconds of 12th April. Therefore, there is no chance to win if you reload after that until 18th April.
The next campaign week is: 19-25th April. So, aim to stay awake on the 18th April, and start your attempt one minute before midnight.
You may perform a few reloads of smaller amounts to test your network speeds.
If official Touch N Go/Boost/Lazada time is before midnight, then you lose the cashback. If it is within 5-10 seconds just IMMEDIATELY after midnight, then your chances are great.
Good luck.
It is always good to share.
If unsure pls don't imply wild guess as a fact.