Pathetic Network!

<p>I have been a Cell C customer since I had my first phone. I have 2 contracts with them and always upgrade my contracts. I am highly ****ed off with their service! For the last month, I have been up and down between Cell C Gateway branch and Cell C Bluff stores. My S4 is giving an error saying "not registered on network", I can't even call Cell C from that phone. So after 3 trips to the Gateway branch with this problem, someone there decided to take the Sim card out and test it in another phone and it worked fine. They then told me I need to go to Samasung. I went their and after doing a search they told me my IMEI number is blocked and I need to get the documentation from Cell C. Went to the Gateway and Bluff branches again, and no one could help me! Phoned Cell C using another number and the don't even know what an IMEI number is. Then someone told me it's becuase I used up all my data for the month, yet I still had minutes available on my account. The data works fine on my S4 but can't send or recieve phone calls or Smses. At the Bluff branch I purchased a new SIM card and wanted to do a SIM swap. When I called Cell C they said there was an error on their side and they were logging a case. After a few days I called again and apparently no case was logged. Had to call again and gave an alternate number for a guy to contact me on once he logged the case and said he had to hand it over to the technician who would unblock the SIM. still I have not recieved and feedback on this issue! I am waiting for the contract to end so that I can cancel this silly pathetic network. I can't even log onto games etc and use the internet properly without it saying error, or reload webpage later.... but yet they take off data very quickly even though I can't even get through to any sites.</p>