tell 'em to get ****ed over the receipts, what you paid for them is none of their concern, as long as you didn't take the **** by charging £100 for a bag of £15 addy you'll be fine. i'd be seeking damages from them in your reply via the solicitor
exactly what my solicitor said rob,obviously i made money on supplying them but materials were 2k i beleive that included 30 metres of tiles,ufh,all tile materials including 9 chrome trims,travertine slabs,spotlights and led bulbs,plaster board,timber etc etc etc the list goes on and alsoa skip in there so i think i made 250 of the 2k profit