They are only guidelines -- you should claim what you actually spend -- they will tell you if you exceed the accepted guideline figure. They can accept over the guideline figure if you can prove and justify it.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014
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