GoSeigen wrote:.......... The fact that they have escaped those losses is a miracle ....................
No miracle involved !
It is a long time since I have visited the City but I suspect that most relevant people there believe that
a) the cancellation of a share in return for compensation is redemption, and
b) the word "irredeemable" means "cannot be redeemed".
In consequence, if a company issues shares which it describes as irredeemable, the company is deliberately giving up any right which it may have to cancel those shares unilaterally.
If subsequently the shares are cancelled without the agreement of the holders - however that may occur - this constitutes a breach of the contract formed at the time of issue of the shares (and the company should be liable for any such breach).
The surprising aspect is that "cancellation at par" ever got off the ground.