I wish to travel to Côte d'Ivoire on 3rd February 2012 for a week to advise science researchers there. 

I have a few questions about the visa application procedure outlined here: http://www.snedai.com/new/En/Projet/Visa/procedure.php?country=4. 

1. Do I have to send anything with my application form (other than attaching a  photo)?
2. Should I wait for a response to my application before paying?
3. Do I need to visit the embassy in London?

Thank you for your help and apologies for not writing in French.