Is Interactive broker still available?
I'm considering taking up their current promo.
You can use whoever you like now:
https://www.esuperfund.com.au/trading/international-shares/how-it-works
...but "you will need to source and provide this data to ESUPERFUND annually" and that'so big deal. Just send them the tax year report.
I got in earlier when they had a setup link for IB and they can access my report themselves.