Hold 8000 sim for 30 days and you get a cut in the rewards.
If you want to get a cut on the next day, buy 240,000 SIM today for tomorrow you will get a share of the holding rewards worth 8000 SIM and and even more in the succeeding days.
240,000 / 30 = 8000 SIM already on day 1 of your holding. No problem, I'm not good at explaining anyway.