I haven't received any such email. I checked the portal yesterday waiting for an update desperately and it was there! To be exact, I completed my application fully on 21st November.
Would you mind sharing whether you received the email informing applicants of a potential delay of two weeks in the issuing of decisions? Or did you receive the offer right away?
May I ask when you received the conditional offer?
I received it last night. Applied towards the end of November.