$Infinity Lithium Corp Ltd (INF.AU)$ I want to buy some stoc...

I want to buy some stock in this company. According to a video I watched it said you can start with as little as AUD$15. I contacted Moomoo and it said I had to convert to US$ which I've done but I still can't buy any stock. It says that for any stock that's not ASX I have to invest AUD$500 or more. Can anyone assist?