Hi there @ianmh
Welcome to our Community and thanks so much for your first post - I was sorry to hear about the delay in removing Voicemail from your landline. This can be removed within 24 hours usually; we only requite 30 days notice for channel removal and contract changes or any chargeable features.
I have located your account from your forum information and pop you a quick private message so we can go through security with you and see if we can amend the removal date for you. Please look out for the purple envelope in the top right of the page and pop me a reply when you can.
Cheers