Hi @DELBOY31,
Thanks for your post, and welcome to our Community Forums. I'm sorry to hear you've not received any information regarding the appointment for this changeover. I've taken a look on our end and it looks like a Technician appointment has been booked on the account.
You can view this on your My Virgin Media here, or if you like, I can pop you a PM and get some more details and then provide you with further information. Please let me know if you'd prefer a PM 🙂
Cheers,