Need some help here. My parents bought a kitchen from Howdens Kitchens which they then hired somebody else to fit, so basically they just bought the kitchen itself. They paid £2000 and a bit for it cash. They then took 3 faulty items back and were told they would receive their invoice for it in the post. Nothing came, which they thought wasn't a problem. Until they received an invoice asking for £196. They are now banned from the shop and have been asked to stop phoning them to try and sort the situation out. What can be done about this as this has been going on for a while now.