Ruth and Dave Hall bought their home in Lincolnshire for £169,000 in 2008 but it is now being sold for just £137,000.
She told Business Editor Laura Kuenssberg that she believes they should never have been lent that money in the first place as the house wasn't worth it and they couldn't afford it.
More top news
Patchy rain affects northern areas of the UK in the next 24 hours. Elsewhere, dry but rather cloudy.
Marjorie and Micheal Cawdery, both 83, were found dead in their house in Portadown, Northern Ireland on Friday.
Ann Myatt, who is contesting Jo Cox's former seat, told a hustings: "We've not yet shot anybody so that's wonderful."