You can try and claim, but it will either go towards paying off your debt with that creditor or be paid across to your IVA.
I personally wouldn't go through the hassle of trying to claim.
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
Bob Marley. http://kallis3.blogs.iva.co.uk