Thanks for your help. Once again you have offered some excellent advice.
I assume the Shareholder's Agreement that £840K can be paid in the future needs to be examined closely.
I fully appreciate that one cannot force a distribution, but given that this £840K has been waivered off and remains simply in distributable funds, how else can Shareholder A utilise these funds given (a) he does not want to receive this as a dividend and (b) the articles require 100% vote for any financial (and operational) decisions.
Given (a) and (b) above he will simply be left with an agreement that he can take these funds as a dividend (when and if he chooses), but no recourse to push though his own agenda on an investment that will not receive the requisite votes. The funds shall just remain in distributable reserves and it will be a stalemate.