Pathetic service and no feedback

We are relocating in a few days time. I have an Explora that is on a payment plan. I called the contact centre and requested a settlment quote. I had to call in several times as the DPP department are unable to take incoming calls and they are not reachable at all. I got the quote and paid it immediately. I followed this up after a few days. A query was logged. I heard nothing. Another query logged. Again nothing. I called again over the weekend. Another query logged. I eventually spoke to a teamleader. She logged a query and escalated. Again nothing. I have to keep on sending follow up emails. She handed the matter over to her manager. Again I heard nothing. I emailed him. No reply. I called him. He called me back and said all will be sorted today. Guess what? NO REPLY once again. This has been going on for almost 3 weeks now. I cannot believe the poor levels of service. Everyone keeps on escalating and nothing gets done. YOU HAVE LOST A CUSTOMER FOR LIFE MULTICHOICE. You will never see me again.