How much data are you using a day as there is a limit of 500mb before you are charged extra? The other extra charge you would get is for international calls and texts.
It does seem excessive what you are paying so unless you using the above you will need to contacts Optus by phone or online chat.
__________________________________________________________________________ I’m a Yes Crowd Champion (not an Optus employee). I share my knowledge on Yes Crowd on a voluntary basis. If I answered your question, please mark it as a Accepted Solution. If I helped you out, hit that Kudos button