Realwomen.co.nz

I am going insane with this! Farmers are useless - although they are supposed to stock up to larger sizes they never actually have any!! Does anyone know where to go in Christchurch for maternity bras for the fuller figured woman? I started off an 18 D - DD they have since increased in size to somwhere around an 18 G but I can't be sure cause I have yet to find a bra that fits properly! Thanks to the previous thred I will try ballantynes... but any other suggestions would eb much appreciated, I would buy online (the states seems to have cottoned on to the fact the bigger ladies have babies too) but would like to know what size I am before commiting to overseas purchase. TIA