I have a Zanussi washing machine (not sure what make as I haven't written it down), which I am really pleased with, but recently clothing items of a certain material are coming out with holes in (discovered when going to iron). These are not cotton materials but what I would call jersey. I don't wash them with items with catches on (such as bras) and they are clothes brought at Christmas time so are not old either. I have checked the inside of the drum for snaggy pieces but haven't felt anything out of the ordinary. Any ideas?!