There is no formal British diplomatic representation in Benin. If you need consular assistance you should contact the British High Commission in Accra. There is a Community Liaison Officer in Benin who may be able to help in an emergency. See Consular assistance
There is an underlying threat from terrorism, including kidnapping. See Terrorism
Take out comprehensive travel and medical insurance before you travel.
Before you send an email, make sure you have read the travel advice for the country you’re travelling to, and the guidance on how the FCO puts travel advice together.