I wonder if the OP has also gone onto other ISP forums and posted about them losing customers too, why do I think not and just posting here only to try to make it a bigger issue.
Like Virgin who saw their fixed broadband base fall by -15,300 in the quarter...
From ispreview here:
https://www.ispreview.co.uk/index.php/2023/07/virgin-media-o2-uk-cuts-2000-jobs-as-broadband-custome...
This thread best just being closed as not bringing anything beneficial to thus forum.
I do not subscribe, so please do not always expect a reply.