RCS SERVICE IS TRASH

I purchased airtime using my RCS app on Friday the 15/12/2017. I purchased 8ta airtime for R100 and for R20. The amounts went off my card and I received the confirmation email of transaction success. I NEVER GOT THE AIRTIME ON MY PHONE. This is money which they expect me to payback in return. I proceeded to call the ********** 889 number on the confirmation SMS RCS sent me to notify them that I still have not received my airtime. I was told its not their issue I must call Telkom. I called Telkom and they told me its not their issue I must deal with RCS as its their app. I called RCS again and they still told me its not their issue. I spoke to the same agent TWICE, never did she even offer to sort this out or investigate if there was a problem with the app... Not even an apology for the money I have lost. I'm an RCS card holder - joined a month ago and I am already complaining. Your service stinks.