@MikaelCBernard
Numbers to illustrate:
Under Meffy:
Foreign airlines sold ₦1,000,000 in tickets
Converting at CBN rate of ₦430 = $2,325
This money is trapped
Under Cardoso:
CBN rate now ₦1,500
That ₦1m = $667
So in 2021, I trapped your $2,325.
In 2024, I offer you $667 as "full payment".