@abc123 - I agree and with hindsight I should have notified the DWP directly, however I believe that Mr.P has a valid point that WL has a contractual obligation to inform me at the time and notify the DWP seperately. If they had done this then I would not be in this position.
In the matter of income vs expenses I, as with most people I expect, regard income as taxable monies received that can be used to replace normal living costs (i.e.replacethe need for benefits) and I did find this on another legal site
"Disregarded income:some incomes are fully or partly disregarded when working out a person's income. These include:
Attendance Allowance; Business expenses paid with salary; Charitable voluntary payments; Disability Living Allowance; Fostering payments; Child maintenance payments; Child Benefit".
I did not receive any salary component (except for 1 instance as detailed above) and indeed in some cases te expenses were paid by a registered charity to enable my volunteer work. Unfortunately in my experience in dealing with the DWP I do not expect rational decisions... to be expected I suppose from an organisation that forces the most vulnerable in society to use a premium rate phone service to even make contact!
Thanks for the input