Thanks for keeping me updated.
I 100% acknowledge what a mess this looks to have been and you just want your service connected. I would request to leave it with me to follow up for now rather than contacting Optus (despite receiving letters to do so) which has resulted in several incident numbers, fault ticket numbers, order numbers, etc. so all different teams of Optus people are involved with it which looks to be causing mixed information and issues.
Definitely not your fault but it's best I try to narrow it down to the right person/team to resolve as soon as possible.
"Definitely not your fault but it's best I try to narrow it down to the right person/team to resolve as soon as possible."
Is this the same team that "called me numerous times but the phone rang out" but didn't call once? Goodluck with this...