Welcome to the Community!
I've located an account using your Community details. I've also managed to run remote tests and have detected drop outs on the connection.
I will organise a call back to be made from our Technical Team to assist you in checking the cause.
Could you please send your best contact time & number via private message?
We've seen that you were able to speak with our Tech team and the issue was escalated to our Engineering team for further investigation. They raised the case to NBN Co and are waiting for further updates.
They'll be in touch once an update is available.