Have they explained why you owe this ? Have you had payment breaks? Have you got equity in your property? Have you received a windfall of any kind? Have you earnt more than your agreed income ?
These are just some of the potential reasons ... your IP should provide you with a clear explanation. Let us know so we can offer further advice.
Sharing from experiences of dealing with debt
There is a solution for everyone .... Just need to stay positive !
As Luluj mentions,please give us some more information, so that we might be able to give a useful reply. However, the key to your quandry is held by your IP who should be able to explain.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014
If you are at the end and it has finished successfully then it will be written off but I wonder if this is not what you mean. What does it relate to? Arrears? Extension? Overtime or bonuses?