How is the leveling system in byUnefit works to get an extra data?

To level up, you have to collect a certain number of uCoin to get special benefits at each level:

1. Temen (0 u-Coin - 100 uCoin)
2. Temen tapi Demen (201 uCoin - 300 uCoin) get extra data 2% on each main data quota purchase
3. Temen tapi Mesra (301 uCoin - 660 uCoin) get extra data 3% on each main data quota purchase
4. Temen tapi Sayang (661 uCoin - 1.410 uCoin ) get extra data 4% on each main data quota purchase
5. Bukan Sekedar Temen (min. 1.411 uCoin) get extra data 5% on each main data quota purchase

This is an image of the byUnefit level system to get extra data :