very dissappointed with this ON AIR TV thing

Hi My brother received the call from onair and offered to him the package according to them it was more like an upgrade to what he have so yeah he took up the offer and they came and do the installation, mind you he was not aware that he is taking the second account on top of what he has with multi choice DSTV, they told him that it an upgrade and they working together with multi choice, they were suppose to debit the premium from the his account but they never attempt to do that, then he stopped to pay multi choice then his services were suspended and he went to multi choice they told him that yes because he did not make payment that is why they stopped his service so he payed directly multi choice and service were reconnected and when he asked about this on-air they advised him on air is another company working alone not with them. this on air never even tried to contact him to advise that his account has not been paid or even sms him, a year later when he went to try and open account only to find out that this on air has handed him to credit brewers and blacklisted so he needs to sort out this on air account the he tried to contact them to find out the story they said they will follow up on their side and get back to him which still today he is waiting for their response. I tried to call them on the contact number on the internet but if you select the option to go through to the is not working just keeps on repeating the selection voice up until it goes through to multi choice.