E16-0 error even after paying

DSTV has once again done what they do best, to disappoint and send you pillar to post. My subscription has been paid for but we have no picture. We are stuck with error E16-0 which implies that I didn't pay, of which I did because they debited the money. Not only that but I had to pay twice but still no picture,their walk in centres at both Maponya Mall and Jabulani Mall can't fix it. They have been in constant communication with the Randburg supposed head office but no results. My decoder currently sits at their walk in centre at Jabulani Mall with no resolution. So I'm paying for nothing. DSTV is actually disgusting as they won't even let me cancel the service because apparently they can't cancel it.