After enabling the "Cashback" option, you can start getting cashback for your trading as soon as the total amount of lots traded in the past 30 calendar days gets to 5 or more.
There are four Cashback levels.
Level 1: 5% cashback, available for those who traded from 5 to 14.99 lots in the last 30 days.
Level 2: 10% cashback, available for those who traded from 15 to 34.99 lots in the last 30 days.
Level 3: 15% cashback, available for those who traded from 35 to 59.99 lots in the last 30 days.
Level 4: 20% cashback, available for those who traded 60 lots or more in the last 30 days.
Your initial Cashback level is calculated at the moment of the Cashback activation.
For example:
You registered an account in FBS Trader on September 1st, traded 15 lots, and on September 30th activated the "Cashback" option. The moment you activate it, Level 2 is already available for you.
After that, the Cashback level is calculated for the past 30 calendar days after each trading day before the payout at 00:00 (server time).
You can see the Cashback level changes immediately after you trade the needed amount of lots for the new level.