What date did you email your SD to the TEC? And what time is the TEC's acknowledgement receipt?
A missing revoking order from the TEC is not too surprising. Since Covid struck they seem to suffer delays in getting letters printed and into the post. Sometimes weeks rather than days. Before Covid letters were usually posted 1-2 days after printing. But it should eventually arrive.
The TEC will use whatever address you put on the PE3 declaration form. They will have informed TFL of the SD and the address on it, in theory electronically and on the same day if they received your declaration before 4pm on a working day. TFL would/should have updated the address if the one from the TEC is different.
The TFL log says a PCN was "batched" on the 23rd Sep. So we can expect that it was actually posted on the 25th Sep. I would imagine that it should have arrived yesterday or today.
I suppose it's also possible that the TEC haven't actually processed your SD and issued the revoking order as yet. TFL might have jumped the gun and anticipated that the TEC will do so and put the batched PCN into some sort of hold/pending queue. But batched (a data processing term) in this case usually means print PCN and post.
Is there anything unusual about your address? EG a sub-division of a larger property like 123, 123A, 123B etc. Or maybe no property number at all, just a name? Or two properties combined into one? Anything at all?