Donation:

1 x donate this name € 15,00
2 x donate this name € 30,00
3 x donate this name € 45,00
4 = 5 x donate this name € 60,00

Exclusiveness:
If you want to donate a name exclusively, you need to set the number to 5.
This means that the name is exclusive to you and can no longer be donated by anyone else.