NBN Upload speed sucks

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Level 1

I was initially on NBN12 plan and 6-7 months back I've upgraded to NBN 50 plan and from then on I get download speed consistantly around 20-25MBPS where as my upload speed still stays at 0.75-0.8 mbps:

I tried with direct LAN cable as well and not much difference:

 

Please see attached last few of my speedtest results: 

 

Can you please advise?