Mine doesnt allow it either so we are having rose petals to match my theme and bubbles instead!

There are loads of places that do biodegradable confetti now adays babe so just ask in a florist, in a shop or check the box when you go looking

Thanks ladies, i think the hole punch and biodegradable paper is a good plan - i've got people asking if there's anything they can do to help!!!! xx
I also love the rose petal idea so will go asking in florists. xx