I store Eastgate messed up my account with vodacom

Last Monday at Aron's 13:00 I went to the apple store in Eastgate to do an upgrade on my Vodacom contract, I was assisted by precious the sales assistant. After almost an hour of shuffling around the store and making phone calls to her head office the upgrade was processed and as I paid my fee. At that point a message from Vodacom had come through to my phone saying my tariff had been downgraded to a much lesser package, the sales assistant assured me that everything was in order and I had nothing to be concerned about, I felt otherwise and called vodacoms platinum help line who said that the store had indeed downgraded my tariff and the store needed to reverse the process, at this point the sales lady completely out of her depth requested the managers assistance, he said with confidence to that its not an issue hell resolve this quickly, I have followed up with the store no less than five time since to be told that everythin Was under control an I had nothing to concern myself about. Today I received a message from Vodacom confirming my package was in fact downgraded and the staff have **** to me all week. There is a general shocking attitude to people in this store that I observe