Not good Business attitude

I went to Cell C at the Glen in January to sort out my cellphone. I did a sim swap and the one employee told me as long as I load airtime my number will still be in use. I have been putting in airtime but when I wanted to use it my nephew said that a different number appears. I then went to Cell C the Glen again and met an awesome employee that explained what was done and she could understand because it was done incorrect in January. She then mentioned the one employee that has done it was on lunch and advised that I can come back and speak to this employee, but as we were speaking she came back. She asked her colleague what she has done but this employee was rude to her shrug her shoulders and just walked away. She then advised that she will speak to her superior to assist and we can do the necessary. The manager advised that I now need to go get another affidavit and come back to them with proof that the airtime that si showing is mine, but he also advised that I need to make call which the one employee did not advise in January. I have had this phone number since 2008 when I took out the contract and changed it to pay as you go because all my friends had this number.