One could think of offering a higher percentage to those who decide to block HBD for longer.
For example, those who block HBD for 12 months have a higher percentage than those who decide to keep it for less time.
One could think of offering a higher percentage to those who decide to block HBD for longer.
For example, those who block HBD for 12 months have a higher percentage than those who decide to keep it for less time.