Can't remove voicemail feature

[#1]

Voice mail is overriding my answerphone.
I've tried to remove it in Phone Control Panel, but the voice mail feature is already unchecked.
Do I need to get technical support to remove it for me?
Thanks

[#2]

Hi there, could you open a ticket on your account requesting this please. I'll place the order, I just need a record that this has been requested

[#3]

That's great, thanks.  I've opened the ticket as you suggested.

[#4]

And I've replied to your ticket.