Tarracos uses an auto-upgrade system where a part of your earned commissions is used to buy more exclusive properties, thereby maximising your small payment for higher commissions.
The more exclusive the properties you own, the more you can maximise your commission.
There are no limits to how many referrals you can bring in, and therefore no limits to how much money you can make. Bear in mind that the only properties that most users can buy are those that VIP users are selling.
When you register and start bringing in referrals, your account is set to auto-upgrade. This is to maximise your commissions as quickly as possible.
If you want to withdraw your total commission from the very beginning, rather than upgrade for higher commissions, you can switch this function off. When you want to upgrade with part of your commission to make even more money, you can activate this function again.