Cell C the baddest customer service ever!

Good day

I'm writing this email regarding CellC Cleary Park Branch for the baddest service I ever experienced. I went to close my contract in Jan this year, but a consultant named Donovan assisted me and forced me to take this current deal going on a laptop and WiFi router of R299 a month. He persuaded me and I eventually took it. My installment was R299 a month until I got this bill of R5391 and I went to them immediately and they told me they first have to request documents. I asked how long it takes and they said they don't know, they will keep me updated. Two weeks went by and I insisted on talking to the manager Moneen. She said she forgot about me but will look at it now. How can she forget about me? Is this case not serious enough? Anyway she then checked on the computer and then told me she can see it is not my fault and will deal with it. She once again promised to phone me back the next day but she never did. I can't get there every time because I'm working and have things to do. So another month passed by and went back there but Moneen refused to come out of her office, sending a message saying she is busy with an e-mail! I had to wait and not the e-mail! So I decided to leave because I had my baby with me waiting with my mom outside so I decided to leave because I was waiting more then 15mins for her. I told them I'm taking this up with Head Office at Greenacres. I spoke with a lady named Julaine and she told me to write my statement and send it via email so that she can show management. She did not have a solution nor aswer the questions that I had. I've sent Julian numerous emails and her replies were 'waiting on management'. The last one was when she rep**** saying she is no longer with Cell C. Went back to Greenacres head office and spoke to Siphokazi,because I received a call from SSDA apparently they are a credit bureau saying I owe Cell C R14369. How can that be? Why did it have to accumulate to this? I've been going to CellC for 6 months fighting with them to sort this out. I have to take legal action.. Very furious and unhappy about this.