Dear all,
I just rang HO 5 minutes ago on 0300 123 2253
quick pick up, polite lady.
I asked when I can expect biometric enrolment letter or email confirmation.
she said it all depends on individual case worker when they want to send it. some don't receive confirmation.
and she couldn't provide further information regarding my application.
and if I want to submit additional supporting documents, it does no harm to my application.
she said they start processing an application as soon as payment taken,
so just wondering why can't she tell me my case id or reference number.
I will ring them every Friday trying to get updates on my application.

hopefully one day someone over the phone can give me some information .