Hi thereI was living in a small apartment in Sydney Olympic park with one room and living room. The usage of gas was not to much and the first bill was $61.84 (from 10Aug 2018 to 10Sep 2018). Then the second bill $101.97 (from 10Sep 2018 to 10Dec 2018). I paid all that bills without late.Next I ordered to disconnect gas and electricity on 7th Jan 2019 because I moved out and finished the contract of the rent of apartment... after all that I received an email for latest gas bill and was really un ...