It took me ages to find it too and I was just looking in the wrong place, my Tesco have it....... once Id found it I didnt like it anyway! Sorry, not much help am I! x
depends what you are using the quark for, but low fat fromage frais could be used freely instead? i use it when i can't get quark for dip for free tattie wedges, bit of garlic salt in it is yummy!