Have vitiligo covering 70percent body and face wanting to depigment with skin lightning cream what do u recommend and is it available in australia how do I go about achieving this procedure

I suggest you see your doctor and ask for a prescription for monobenzone (benoquin). Since you depiged 70% already, monobenzone will help you deig completely.

I agree with chandani's reply...

Since, you already have vitiligo, you should go to a doctor and discuss the possible treatments options. If you (& your doctor) decides to go with the monobenzone option
After going through pro's and con's of this treatment, you can get a prescription and
Get your monobezone medication through a pharmacy. I highly suggest you to go to a doctor
And obtain your monobezone from a pharmacy with prescription. In that way, you will be 100% sure that you are getting the real thing.

Again, consult to a doctor. Because, even in the case of vitiligo, repigmentation spots could occur due to folicular melanocytes. Your doctor will inform you about all of this.

Whipcracke skin whitening cream causes pigmentation loss (http://www.vitiligoguide.com/white-spots-on-skin/) in skin. This cause the pigment retaining part to lose their coloration and hence the too become white and match with the already depigmented parts.

First try to use the treatment which causes repigmentation again for your white spots.