No. VFS arent the embassy. They appear to work for the embassy.
VFS. Who are we?
VFS Global is a commercial company, working in partnership with UK Border Agency at the British Embassy here in the Philippines providing services to help people apply for a visa to enter the United Kingdom (UK).
See the below....
http://ukinthephilippines.fco.gov.uk...sy/contact-us/
Also, owing to the Data Protection Act, they may expect your wife to email.