Pre-approved payment do not convert into real payment

Hello folks,

My site is now live with Fundraising plugin.

The goal has been reached. Since then, every donator has paid live and I received the money.

But I did NOT received the money from pre-approved payments (payments that occured before reaching the goal), even after reaching the goal, even after the fundraising period has been finished.

I checked with one friend who donated and who received a pre-approved notification confirmation from paypal for his donation. But now I still did not received his money.

Can you explain me why ?
Isn't the pre-approved money supposed to appear on my account right when the goal is reached ?
Or is it supposed to appear when the fundraising period is finished ?
In that case, why my pre-approved payments did not convert into real payment ?

Thanks for your answer