Incorrect information given to clients

I received a call from On Air about their special in August everything was installed on the 18/09 I called multichoice to check if anything that I need to pay or outstanding was told nothing since I have debit order on the 20/09 I can call on the 25th to add Box Office, On the 3/10 my service were cut since the decoder was not canceled I need to move package been calling since system down, on the 09/ 10 was at Smith Street Walk in Centre was told owing an amount of R283 that I had to pay but packages have been moved, today services cut again I need to pay R 233.00, ask me for what? I do not know please can you please resolved the matter as even the old one cannot be since it has been canceled. I need a quick response from you