Ann: Prospectus, page-59

I am relatively new investor seeking advice on pros and cons of remitting money to purchase under similar future proposals.
To be upfront, I have today purchased further shares outright rather than risk tying up money to be subjected to scaleback and reduced allocation (16% in the past in different stock) and then upon return of money finding the share price has escalated and reduced my ability to buy stock.
Better the bird in the hand and forego the option (50% dearer end '24)?
Although I have forfeited this opportunity, i would appreciate thoughts of investors who have experienced or not similar outcomes.
Happy days to you and yours.