VOX - WORST service provider experience

I’ve had no internet service from Vox since midnight early hours 27 March due to Vox faulty router. Logged a ticket same morning ref VOX***8. Until today this issue not sorted. I have since cancelled my membership online. Received no cancellation email either. Had to request confirmation. Vox now refusing to release my line until “notice period” ends, which is 1 May. So I should be without internet for another 2 weeks ! Why should I wait until 1 May and have a notice period when I don’t have the internet service from you Vox ?! And Vox is already aware of the problem as the ticket was logged ! All I want now is for my line to be released.