Bad service dstv.

I have been calling the dstv call centre for 8 or more months to help me with their price lock thing, which I didn't understand, it was canceled and when I need help, I'm told thy sent the email to the accounts department. Thy will call back, on the 28 of December I called again, the call center agent told me I must take it back to the nearest dstv walk in center (menlyn) , which I did, the manager was called, he Promised to fix the account by 3 of January, when we call him, he keeps on saying I'm busy with it. Remember this thing is affecting my credit, and I was told it's like a normal dstv. I'm having 2 dstv which are not working.I'm calling every day and I'm being kept on hold...