I have an Indesit D 63 dishwasher. One of the rollers on the top tray (for the cups) has come off but on closer inspection it would appear that the ‘rod’ onto which the roller clips has corroded and part of it is now missing. Clipping the roller onto what remains of the ‘rod’ is not really satisfactory. Are you able to supply a new top tray? If so, how much, please?