Mutlichoice owe me cash

For 9 years have been paying two different DSTV accounts. One family and the other Compact. On the 23 March I decided to cancel Compact account and upgraded Family account to Compact. I have given a quote for 402 on the new upgrade with the effective date of the 23 March. The quote included pro-rata amount. On my debit order date of the 26th, both accounts were debited same amount I used to pay the previous months. The debited an account that is in cancelled status. The other one was upgraded but they didn't debit new amount. As I write these now, I'm not getting any service from both accounts. The other one is cancelled as I requested while the service for Family has been suspended because they debited wrong amount. The service has been suspended from the the 1st of April. I have spoken to three call center ladies which were just useless.