I have finished paying Iva in June I have recently come into some inheritance will I have to pay the total amount that my Iva was or do they deduct what I have already paid in

I am with grant Thornton and they have been informed by my solicitor

I have just completed my Iva in may in the meantime while waiting for my certificate I have come into some inheritance will I have to put all of it into my Iva even if it is more then my debt

I have paid my last Iva payment to grant Thornton in may I have not heard anything how long does it take also what happens if I come into inheritance while waiting for closing certificate will I have to pay the total debt back

If I come into a windfall after finishing my payments but still waiting for certificate will I have to pay all the debt back I finished by Iva in may but have not heard anything

When I have finished my iva do I still have to give info about any windfall ?