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.
If your country does not appear in the citizenship field in our online application, please contact us before applying. It may be required for you to apply in person to a Cuban Consulate and provide extra documentation, which we do not process. Any misleading information on your Cuban Tourist Card application will immediately invalidate your Cuban tourist Card.
We recommend contacting your nearest Cuban Consulate at http://misiones.minrex.gob.cu/en
You could also contact the Cuban Consulate in London.