Il keep this brief. I own my own house outright in my own name, I have 4 children by my ex husband. My partner moved in Jan 2016, financially we have always been completely separate. I look after my children with either my own money, the money my ex gives me or working tax credits. Around 6 months ago I had a letter off DWP stating I hadnt declared that my partner and I were living as a couple. I have filled out various forms and also seen the CAB. The last ive had off HM Revenue and customs is an Mandatory Reconsideration letter which they have not changed their minds. The house and bills and everything is in my name and comes out my bank account. Is it worth seeking legal advice for this? They want the entire amount back sub £20k. On the phone when I speak to them they say the claim has gone to the Offsetting Notional Department. Please help!