Some companies are horrendous for putting in an automated system which makes it almost impossible to talk to a person. I've found a few shortcuts to talk to a human at certain companies:
Opal 13 67 25
Press 9, 7 then 3
amaysim 1300 808 300
Press 1, 1, 4, then 6
Anyone else know other shortcuts?
Regardless of company, I just mash the # and * buttons on the phone repeatedly and this always shortcuts to something like 'I'm sorry, I didn't understand that, putting you through to an operator"