I am currently on Telecom 20gb adventure plan, wanting to give big time a try.

I see Telecom state 1 plan change per calendar month, rather than billing cycle month.

Reading previous forums, I also see people mention that you can change twice in the month, if you decide that big time isnt for you?

Is this correct, or will I be stuck with big time for the rest of december if it doesnt suit.

Am I best to wait until the end of december, and change, then change back in early jan if its not suitable?

Any help appreciated.