In my own case, my wife acted as my representative, so the biometrics letter was sent to her email i think a day after her sponsorship approval, she also received the email when my application was moved to accra. I linked my application online after it was moved to accra, from then every other correspondence was sent to my online account (medicals, pre-arrival letter and passport request) and each time i get an email telling me that i have a message in my online account. The biometric and PR fee was all paid b4 submission, so i didnt have to pay anything for biometrics, u wld only have to book an appointment with vfs for the biometrics. There's VFS in lekki, Lagos and in Abuja too. Hope this helps