Our transfer agents are:

for the London listing:

Computershare Investor Services (Jersey) Ltd

Queensway House, Hilgrove Street

St Helier, Jersey JE1 1ES

or, for the LuSE listing:

Central Securities Depository (Zambia)

Lusaka Stock Exchange Limited

Exchange Building

Central Park

PO Box 34523 Lusaka, Zambia

You may get more details here. You may also contact them by submitting your query here.