You save 3,38$. Just look on this calculation below: On addmefast website you could pay: for 3900 - this is the amount of points with 30% bonus which you will receive when you pay 10$!!! My calculation is very simply: On addmefast it looks like: If 3900 points = 10$; When you pay for 2 times It looks like 7800 points = 20$; So: 7800 points - 20$ 6000 points - x x = 15,38$ My price is 12$ After subtracting you save: 15.38$-12$=3,38$ If you are interested write to me on this e-mail: [email protected]