I was thinking of using the 'return an item' link through the amazon website, which gives you the label etc to print, so you can send it postage-free. do you think I should call, then?

it's what I'll do Monday morning, in any case - I have no printer to print the label, and there's something wrong with the phone so I can;t call them (and I can't afford to call them though the mobile before I get paid *sigh*)