Thanks Bob C, I think there was some problem with the distribution of the magazine, maybe it is ok in Perth up until this point. Maybe they slowly phased them out from stores, I don't know but it's okay as I said if anyone can no longer get them you should be able to get a subscription for it.
I will be getting a subscription when I can, I've missed a few magazines I really wanted, if anyone knows if Australian Aviation sells back issues I'd like to know