I called them up and they checked the notes from my earlier call to them where they said they would not charge the excess usage due to this problem. They put in a request for this amount to be credited back.
Then today my flatmate (the a/c holder) gets an email saying the request has been denied due to us not providing the email address the Quickflix account is registered too, we need to provide the email address and then they will resubmit the credit request. They never asked for it during the 2 earlier calls.
What a lot of hassle to go thru over something that was not meant to be charged for in the beginning.
Needless to say I will not be signing up with Orcon when I get my own place.