Poor service VOX

We cancelled Vox Internet because of horrible service, we paid for 50/50 line, the speed was never close to that, we cancelled with more than a months notice, our line had to be released by 1 Dec, needless to say. It is now end of business 2 Dec 2024 and our line is still not released for our new ISP. Vox keeps telling us it is with Vuma that needs to release, Vuma came out. Checked everything, and sent us confirmation that Vox is holding our line. We have tried to get them to release it all day, 6pm they told us to phone in business hours. We have been doing that all day, we are so tired of the excuses Vox cooks up. We just want our line opened. Would NOT recommend VOX even to my Worst Enemy.