Pathetic Service

My phone stopped working and I phoned the call centre for information on my existing contract and warranty information. I was put through the wrong department and had to phone another number. When i got through the agent Simphiwe i explained to him my phone was not working and i needed information. He had problems hearing me due to the raucous on his end. I was instructed several times to repeat my self. When addressing my query Simphiwe attempted to "help" me by just getting my cell phone package details. I advised him several times that he needed my cell number and not my package details as i explained my phone was not working and i using another number, you would think this was obvious. By this time i was done with this call. I requested to speak to his supervisor. Im still waiting. What is the purpose of a call centre.