I'm looking at investing via crowdfunding through Onmarket. My...

I'm looking at investing via crowdfunding through Onmarket.
My biggest issue is the volume limits. $4,999.99 to sell or send in a single transaction & worse a $9,999.99 volume limit over 30 days.
Basically means you can't buy a decent amount or at the very least restrict your liquity if you need to sell in a hurry.
I'm assuming it's a tax, money laundering, funding terrorism but just ask for people's ATO number & report the transactions!