Bad attitude and profanity aimed at customer

I went to the Vodacom Paarl Mall on 26 Sep 2015 to purchase two prepaid sim cards to port two numbers to Vodacom. I was assisted at helpdesk one by a male with no name badge. I asked him for 2 prepaid sim cards for the iPhone 5S and showed him the phone, he left and returned with two SIM cards. When I got home they were the incorrect size. I then returned informing the same Vodacom represeantive that they are the incorrect size. He then with bad attitude told me I clearly asked him for a Micro SIM and not a nano sim and must know what I want before I ask for stuff. I told him I showed him the phone and he should've known as a person working for a cellphone store what SIM card to give me. He then proceeded to harass and accost me verbally. I asked him for his name and said \it is not important"I asked another Vodacom employee what his name is but he ignored me"