Terrible Service in Call Centre and Shops

This festive season was really unpleasant thanks to CellC. My phone was damaged as well as my sim card. After having my phone fixed i called CellC for a sim swop. After answering all the authentication questions i was told that they could not assist me. I could not believe this and called in again. Again i was simply told that i could not be assisted - no explanation why exactly i could not be assisted. I was advised by a team leader/supervisor that i need to go to a CellC shop and that they would definitely be able to assist. This is the first time that i actually saw a customer service person sitting on a counter and his colleague practically laying on the counter while assisting customers in Parow Centre. He asked for my ID in an abrupt way and proof of address. After that he just said that he can't help me - no explanation, asked for a supervisor or Manager - none on duty. Next i went to a CellC Shop in Cape Town hoping for better service. Even worst, this girl was playing on her cellphone while listening to my sim swop request. Did not even ask for my id or anything just my cell number. After checking - she just said that she can help me. Porting to CellC what a horrible mistake. I am sitting with a 1000+ business cards with a number that i can't seem to get back. CellC why and how are you even in business????