Unlock iPhone 6

[Birdie2600]

 purchased an iPhone 6 over two years ago and was on a post paid plan for the same amount of time. I have now moved this service to a different carrier however i am getting the SIM invalid screen. I have tried calling Telstra by every means possible but have had no luck. All i want is for the phone to be unlocked. I have tried to online unlocking service but that didn't work. If someone at Telstra can please help. 

[Palpatine]

Hi Birdie2600,

Telstra site says: 

We don’t currently lock Telstra mobiles on a month-to-month plan to our network. If you’re on a month-to-month plan and believe your phone is locked to our network:
 

• Call 13 22 00 and say ‘unlock handset’.
  
  
• Visit your nearest Telstra store.

However I think they were locked some years ago if you purchased the phone through a mobile repayment plan

Of course it is near impossible to get through to 132200, and the T Shops are closed (Some may re-open on Tuesday?)

There are some useful tips in the following link that may help, but I note that it will only work on phones purchased from Telstra and the process takes 72 hrs.

Let me know how it goes.

https://crowdsupport.telstra.com.au/t5/Mobiles-Tablets/How-To-Unlock-Apple-iPhone-from-Telstra/ta-p/...