Quite a number of posts are from people who switched in with the now expired MSE offer, but who haven't for whatever reason managed to complete. (read on)
Two or three things need to happen here,
1. All those who get in touch should be told if they do complete their switches they will get the bonus/incentive/bribe*
2. I'm fairly sure that a number of switches have resulted in unhappy switchers who can't get into their accounts which were not set up properly, PP need to make a statement about this if it is the case.
There have been a few posts where panic has ensued
(I think it's a case of your panic doesn't constitute my crisis in some cases but the lack of explanation or response by the team, in some cases requiring a rapid check of whether the poster has actually switched doesn't look good. Given the planning that went into this deal and tariff I would have expected a higher level of support over the closing days, and not just by the community, but PP should have addressed the panic and switch querying posts more quickly IS MY OPINION

3. A statement to say that due to unprecedented interest and some switches not completing we are going to extend the MSE offer for 2 weeks (or whatever)
feel free to move this post to wherever you wish, I can't find the original which I thought was in feedback, but it (this post) is even more apposite given the subsequent posts from failed or unsure switchers.
*Disclaimer
This post is opinionated and may contain one word which may cause offence if not taken in the spirit it was intended (which is not malicious)