Regarding upgrade requirements:
LV1, successful recharge activation is LV1 level, and the account balance is at least 20usd
LV2 needs to invite 3 valid direct subordinate members with a minimum account balance of 100usd
LV3 needs to invite 6 valid direct subordinate members, and the minimum account balance is 500usd
LV4 needs to invite 15 valid direct subordinate members with a minimum account balance of 2000usd
LV5 needs to invite 30 valid direct subordinate members with a minimum account balance of 5000usd
LV6 needs to invite 50 valid direct subordinate members, and the minimum account balance is 20000usd
LV7 needs to invite 100 valid direct subordinate members with a minimum account balance of 50000usd
LV8 needs to invite 200 valid direct subordinate members with a minimum account balance of 100000usd
LV9 needs to invite 300 valid direct subordinate members with a minimum account balance of 200000usd
Remarks: The accumulative recharge of $100usd means that the company has completed 50 purchases, 。
