Bad service received from a call center consultant.

I am an old Vodacom customer I've been with vodacom for 18 years. Today I bought a new Sim card in the morning. When I got home at 7pm it was not activated. I called customer care number 135 unfortunately the operators were busy then they directed me to a chat service. They allocated my chat to a rude person by the name of Tholi to chat with. I explained the issue and she sent me the message that says I am not a vodacom customer and I told her this is a vodacom Sim card and I bought it this morning what should I do now since she says I am not a vodacom customer. Her response was " follow your heart". And I said "that was so harsh thanks" I then screenshot the conversation.

Now I have to go and throw this vodacom Sim card because she says I'm not a vodacom customer.

I am so disappointed with Vodacom, sadly I recently took a new contract and I'm fed up now.

How can they keep such a rude person in their call centers? What is customer service?