DSTV ROBBING CLIENTS

I am a customer of datv paying for dstv access for a long time . I pay R150 to be exact. Today i sent my brother to pay for me at the dstv centre because i m at work . He found out the balance was R229 . He paid for it then told me later and i said no it must be R150 . He went back to query why it is R229. The answer he got was ONLY CALLCENTER KNOWS ABOUT THAT WE CANT HELP YOU. Iasked to talk with a consultant over the phone they refused . I wanted them to reverse my money because i never asked for dstv care plan or anything else but they refused to talk to me . They told my brother they wont help him its not their problem . My question is why they cant help him or me whereas they work for dstv .