There are a few countries that need to apply directly to the Cuban Consulate.
These countries are:
IRAQ, IRAN, SYRIA, YEMEN, ALGERIA, EGYPT, TUNISIA, LIBYA, CAMEROON,
AFGHANISTAN, BANGLADESH, PHILIPPINES, INDIA, NEPAL, PAKISTAN, SRI LANKA,
CHINA(NATIVE FEJIU PROVINCE), ERITREA, ETHIOPIA, GHANA, GUINEA, KENYA,
NIGERIA, SIERRA LEONE, SOMALIA, KOSOVO.
We recommend contacting your nearest Cuban Consulate at http://misiones.minrex.gob.cu/en
You could also contact the Cuban Consulate in London.