I Need Details Of Oando Dividends And Bonuses Since 2004

good day house members, please i have a colleague at my work place who needs my help.he said his brother bought about 10000 units of oando shares in 2004 through i.p.o,although he has gotten his shares certificate, he has not gotten any dividend or bonus shares from them.can someone in the house please give me details of oando dividend payouts,bonuses etc. since 2004 till date.how can he get the whole problem solved? he also said that his friend he bought for did not even get his own certificate. what should we do?