I have a Hotpoint Aquarius WMA56 which has occasionally caused holes in clothes, mainly t-shirts or other thin clothes. Recently, however, it's appetite has grown and it is eating socks. I couldn't work out how this was happening but now I have just completed a wash and a sock was caught behind the door seal and caught on the outside of the drum. Is this a known fault with this model and is there a cure? The machine is I believe 2-3 years old.