does this investor protection plan apply when I don't buy the shares at LMB Holdings but on the open market at Havelock Investments?
Any shares you purchase between now and when divs are released (no matter which site you purchased them from) will receive dividends. With the exception of 1 caveat: If you purchase shares from a new offering then those will not receive dividends until the .0035XBT/share is paid off to the older block of shares sold previously..
So, if the block of shares is withdrawn on the 24th of Feb, then in Mar, a new block is offered to raise more money, those shares will not get any dividends until the .0035XBT /share is paid off to the older block of shares sold previously.