Interesting, mine was ordered on the 10th November by Octopus and the Tesla app originally showed just Jan-Feb, then after a few days it started showing as 8th Jan - 25th Feb. I'm presuming it must just be a window X days from the order then, given you ordered after me.Currently due between 16th Jan - 4th March.
I wonder if the estimated date will shift if it's not on a boat in the next week or so since it will be impossible to achieve the earliest date of the 8th otherwise