Caller: Lady said Nbn

Lady with accent rang me supposedly from nbn saying nbn will fix my internet wanting me to check my internet speed. I asked what should the speed be? She was vague and told me "hundreds". Didnt tell me hundreds of what.....of bytes, kilobytes or megabytes.... She gave me an ID number and passed me over to Mike with similar accent supposedly the technician who will come to my house and fix my nbn with fibre for free. They seemed so amateurish I decided to put the phone down.

Called and as soon as I finished saying, 'Hello, can I help you?", hung up. Tried to call back straight away and it said, 'Call failed", beepbeepbeepbeep - DEFINITELY a scam wanting my voice!

Called but left no message - can't find this number anywhere