12. A class “A” or class “B” share or fractional share is redeemable by the Société only in the following cases:(1) at the request of a person who acquired the share or fractional share from the Société at least seven years prior to redemption;
(2) at the request of a person to whom the share or fractional share has devolved by succession;
(3) at the request of a person who acquired the share or fractional share from the Société, if the person applies to the Société therefor in writing within 30 days after subscribing for the share or fractional share;
(4) at the request of a person who acquired the share or fractional share from the Société, if the person is declared, in the manner prescribed by by-law of the board of directors, to be suffering from a severe and permanent mental or physical disability which prevents the person from working.