Poor customer service

I contacted Multichoice in Dec to inform that I was going away on holiday and to cancel/block which they usually do, and also asked for amount I should pay. The agent who seemed to be a trainee said that he could not assist with my request and I could only schedule for end of Jan. I became frustrated and cancelled my debit order and asked for package to be downgraded, which he could not assist with as well. I returned from holiday early Jan and realized that service was disconnected. I spoke to Agent who was surprised that I did not receive assistance in Dec. He assisted with the downgrade, he provided an amount to pay which I did. He said that billing dept will need to reverse the other charges and provided a number for me to follow up but they do not answer their telephones. I spoke to another agent on 31 Jan and asked for amount I should pay. It took long to explain the entire incident, and he said that the journal entries were not done. He said i should wait and he will provide feedback on amount to pay. he said they no longer block during holiday. I was not told.Service now disconnected. Its time i received a credit for all past inconvenience or will report it to relevant dept