Please be aware that the ez-test.com.au payment system is still not secure on their site. You need to email eztest and they will give you a number to call. It is supposed to be fixed soon.
I doubt it will be, I hassled them about it just over a year ago and was assured it would be fixed soon. I didn't order from them then because of it and I still wont now.
I would have bought 3 full kits in that time frame, ez-test.com.au... please fix your site!