Ok guys, you have been so helpful so far I thought I might ask in here first before ringing Telstra,

I understand that if I am under a contract for triple services phone, tv, broadband and want to upgrade from 100gb warpspeed to 150gb I can without breaking terms of my contract but say I do upgrade from 100gb to 150gb and i'm on a 12 month contract and I am only two months into my contract will I have to have 150gb planfor 10 months or because my original contract was for 100gb I have the option to downgrade again if need be?,

Thanks =)