I have spoken to VM ISP Chat and by telephone. Despite VM Billing's assertion that I have sent the Ofcom One Touch Switching notification, this was sent by my new Openreach ISP and I was never sent a copy.
On 01 October 2024 at 16:58 VM Billing email says new Openreach ISP let VM know that you’re switching your Broadband on 14 October 2024. Switching ref: 5299747804. Although we hope you change your mind, here’s everything you need to know about your switch. Because you’re still in contract with us, you’ll be charged an early disconnection fee of £23.93 if you switch.