Tech report help

What issues?

Kinda impossible for one of us to tell, since the report says "Cause unknown" and "No Fault Found."

I think that the essence of the report is that "No Fault was Identified on the Optus ULL Network" and (probably) the problem was with the Customer Premise Equipment (CPE). CPE is equipment on the premises of the customer. Maybe your modem just needed to be reset. Maybe there is a lot more to the story that you haven't shared with us?

A fine!?! That's quite unusual. An ISP or phone company can charge you for service call(s) if the problem is yours instead of theirs, but I don't understand how they can fine you. Levying fines is a government activity.