Irate customer

What a bad service received from Vodacom Chris Hani in Vosloorus. The lady that assisted me today she is very rude. I don't believe that she is doing customer service Job.. she was so rude I don't even believe that Vodacom hire people like her to service their customer. I have been with Vodacom for more than 20 year. And never thought of changing the network after today I am not sure. I went to the shop to buy a sim card for my daughter and she first wanted me to speak her language Sotho or Sepedi or she will not help me and I found it very odd as business language is English as if that was not enough she did not give me the receipt as a proof of purchae. As it is now I don't have proof that I was at the store.... How many people does she treate like this...she refused to give me her name.... though I can point her if I see her... How can we call this a customer service after receiving **** service... WOW VODACOM CHRIS HANO