Pathetic Service at Vodacom Mandela Square Sandton City

I went to the Vodacom Store in Mandela Square on the 09/07 to do a sim swap on 1 of my lines as i received a SMS from Vodacom to say it needs to be done ans it is free. On arriving at the store i spoke to Petunia Molapo who assisted me and said it cannot be done as the times have changed. I refused and said i would like it done as the store is open and spoke to another lady in her language and said sorry she cannot help. I said the store is open and i drove to get here so i would like it done. Eventually she did and they system accepted it after insisting it cannot be done. When done she said i must pay R60 whilst i told her i got a sms stating it is FREE. I asked for the Manager and owner detail she refused to give it to me and said the Manager is not in. The Dealer ID is SAMDT. The store telephone no is ********** . This is poor service considering the store closes later and the service was Pathetic.