Received a few SMS followed by a final one to call 1800 290 955:
Hi, as requested, we've added a Full Authority contact to your account. You can view and manage the contacts on your account by downloading the My Telstra app and logging in with your Telstra ID. If you didn't make this request, please call our Fraud team on 1800 290 955

Checked my TelstraID notifications and these messages were not on there, so it appears these SMS did not originate from Telstra.

Do not call the number!

Same trick, claimed my mobile number was being moved away from telstra but it was not my number. I diidn't try even the Telstra 132200 attached

Received multiple email & SMS messages to report that "An authorised contact has been added to your account" and
"If you didn't make this request, or don't know why you're getting this email, please call our Fraud team on 1800 290 955"

Do not call this number!

Caller: Telstra

Text message and email from 'Telstra' claiming they were going to replace the sim card. To call 1800 290 955 to cancel the request.

Block and ignore, folks.

Caller: SMS purporting to be from Telstra

Scam DO NO CALL!!

if you call it, they port your mobile number to another carrier and can then take over your bank accounts using 2 point authentication using you mobile number.

Caller: 1800 290 955

Scam DO NO CALL!!
Russian and Chinese server communist penetrating my carrier

if you call it, they port your mobile number to another carrier and can then take over your bank accounts using 2 point authentication using you mobile number.

Chinese tapping on Australian server
Reverse Australia search on this number lots of people
Received multiple email & SMS messages to report that "An authorised contact has been added to your account" and
"If you didn't make this request, or don't know why you're getting this email, please call our Fraud team on 1800 290 955"

Do not call this number!

Caller: Telstra

Text through the official Telstra contact claiming that an extra profile had been added to the account and to call this number, got told by Telstra themselves that this number is being disconnected soon. Ignore all requests asking you to call this number.

Caller: telstra/boost

i received an email requesting to call this number if i am not porting my mobile away. in fact, i was porting to another carrier. so this is not a scam, if you get it from an email/sms.

Received an email which looked very official purporting to be from Telstra saying they'd received a request for a new simcard for my phone and to call them ASAP if I had not placed an order...tricky huh?

Caller: email clamming to be Telstra call 1800 290 955 call Asap

email clamming to be from Telstra looked up Reverse Aust. did not call

Got a message saying my phone number was being transferred away from Telstra, it’s not my number, I did call the number but no one answered

They say they are from Telstra