Worst call centre ever

I've upgraded on 11 October, giving my work address as a delivery address. First the upgrade could not be delivered as there was no stock. How do you sell something when you don't have stock? Then it was delivered to the wrong address, which means it was returned to Glocell. Please note, at this stage I'm calling Glocell weekly for the progress - no one ever phoned me. On 15 November I sent an e-mail to the support helpdesk as you can't speak to a Supervisor. I received a reply from Keith stating they corrected the delivery address, but they are out of stock again. I've still been phoning weekly at this point. On Monday 4 December the agent told me they just received stock. On Tuesday I phoned again to obtain the tracking number, and Sharmila corrected the address again as she said they still had the incorrect address on the system. She also could/would not give me a tracking number. On Wednesday the agent put me on hold and never came back. Friday when I phoned again, I was told by Rene that the phone was delivered on Wednesday to the incorrect address. She will find out if the courier still had the phone with them then she'll arrange delivery to the correct address. Please note, Glocell did not want to give me a tracking number and the courier company could not help me. Suprise, suprise, Rene did not phone me back even though she promised to. I've cancelled my contract today as I can't deal with such incompetence that just does not end. I've been sending e-mails to Keith the supervisor, but he does not respond.