I have Telstra NBN, and things worked OK till one evening at home I found I had no Internet. I phoned them and was told the 'provisioning' (whatever that is) had not been done. They said it would be done the next day. Still nothing. I then had countless hours of hopeless communication with their Indian call centre (you get what you pay for). They kept none of the commitments they made, like calling me at certain times to do a test. Every techie I spoke to had a different answer. One said he would order a new modem, but after wasting several days waiting I phoned again and was told that no order had been placed. I took it to the Ombudsman, who usually gets very quick results from all the Telcos. Not so with Telstra.
You would think I might then speak to an Australian manager? Er no, it was back to India to the same people who had screwed me around in the first place. I work in IT and need the Internet, but it's now been nearly 3 weeks and still no idea when I will be back online.
You are lost in this vast blob of uncaring dysfunction, with the managers well hidden behind layers of hapless Indians.
Avoid this mob at all costs.