Account Billed for a Service I Never Had

I signed up with Vox Telecom in July, and handed over the documents confirming the purchase of two of their 100GB packages. But I never realised the headache switching providers would be and I ultimately ended up sticking with Mweb because my hectic job didn't allow me much time to follow up. However, I checked my statements over the last few month and Vox HAD BEEN BILLING ME even though I had not have the service connected to my line. I can appreciate that I have signed up with you guys and done a debit order, but to continually debit my account when I didn't have a service with you is wrong! <br> I requested a full refund since no service has been rendered, ie. I never used your line, and your network was not connected to my home. I do expect a full refund of every single debit but your customer service staff doesn't seem to keen to assist me in this regard. <br> <br> I do intend on joining Vox at the beginning of next year because I am tired of Mweb, but as mentioned before I should not have been billed for a service that was never given to me - you know - as in Vox wasn't in my home.