RMCS cancel contact without informing people and still deduct the subscription.

I have a airtime subscription with RMCS where they give me airtime each month and I pay through my account with Jet account. I phone them to do a simple swap on 27/11/2018 and they promise they will phone me to advise whether to use the SIM card. I waited for them to call me until 06/12/2018 where I went to Vodacom to assist me with sim swap since they have not come back to me. I was surprised when vodashop advise me that the number has been switched to a prepared card and the contract was cancelled. They did not know the reasons for cancellation and they refer me to RMCS to find out. I went to Jet store in order to phone them to find out. The lady who help me Caroline was so helpful and she also could not understand why it was cancelled and change to prepared. She logged a call for me as she can see that I never requested cancellation and also subscription money is being deducted from my Jet account. Today after I phoned them in order to find out I was place on hold for long time and transferred from one person to another person eventually I demanded to speak to Caroline who understand this and also was very helpful. She promise me that she has taken to a lady called Deliwe and she will phone me today as she has advised her that it is urgent. Deliwe called to advise that the contract was cancelled by the network Vodacom and they had a contract with them for this subscription. I asked her why they did not advise me about the cancellation and also why did they deducted money from my account whereas they knew as from September that the contract was cancelled? She was very rude to me and she did not want to listen to me that they breach the contract as I have it with them and not with Vodacom. She talk me to go to Vodacom for SIM swap and also for airtime that they forwarded.