@majamcr
Thanks for your reply, mate! I didn't expect this to be so quick
Right, I sent the originals on 17/01/2014, then requested the return of the passport and the biometric card 2-3 weeks ago (sorry do not remember the exact day). The passport and card arrived 5 working days after the request, accompanied with the letter that they are thanking me for the application blah-blah-blah.
Today I received the same letter but together with the other originals, like B1 certificate, etc.
Therefore, I was asking how long it takes between the return and the decision.
UPDATE: as I was typing this message the email came through:
"Dear Alexander,
Thank you for your email.
We have checked our records and can confirm that no decision has yet been made on your application."
What is going on...