However, it should be noted it is highly unlikely the PFI Company could perform a subsequent PFI investigation for the entity (should that become necessary) without violating the independence requirements of the PFI program.
With that being said, compliance programs are managed by the payment brands. PFI Companies should contact the payment brands directly to understand compliance program requirements when asked to provide QSA Services after performing a PFI investigation. Contact details for the payment brands can be found in FAQ #1142 How do I contact the payment card brands?
Article Number 1453