BUYING MHCO OPTIONS. Can anyone explain this lot to me & maybe...

BUYING MHCO OPTIONS.
Can anyone explain this lot to me & maybe what broker made this trade this morning. With half the MHCO options in escrow & no one selling what was available I thought I would shake the tree & I put in an order with Commsec on 06/05/2020 for 1,000,000 MHCO options @ $0.006 a 200% increase on the last sale price of $0.002. I was top of the position in the market list, indeed I set the market.
Nothing happened until yesterday when I picked up 50,000 with 950,000 outstanding. Today when i looked at about 1015hrs i had bought 3 options & these had been deducted from the 950,000. Not long after I noticed 500,000 had been bought my share being 1,000. The course of sales were all at 10 :04 :33 200,000 - 299,000 - 1,000.
I did ring Commsec & talked to a staff member for some time but when I asked If Commsec had been the broker for the trade he froze up & said he would have to put me though to another desk, the phone rang a bit then a lady came on, said they were having technical difficulties and I should call back another time and hung up.