Bad/No Customer Service - Cell C

We installed our home fibre with Cell C. On 01 June, we approached them to issue us with a letter indicating that even though we signed up with them for 4mps, as our invoice indicates, we required confirmation that they had increased it to 10mps, as I have been unemployed for two years, and a job opportunity presented itself, which requires that I provide confirmation that our fibre speed is 10mps. Despite conversations initially with a Thapelo, who assured me that they would do it, it never happened. He then went dark on us and does not respond to emails, calls, messages etc. Cell C then closed communication with their technical side, and we could not get hold of anyone for two days either telephonically or via email. I spoke to a Tebogo in sales who then indicated that she would ensure that Thapelo would revert, but to this day, still nothing. I eventually got hold of their accounts section where a Princess answered my call, but when she heard how emotional I was by this time, she rather transferred me to a section which had absolutely no way of being able to assist me. The lady I spoke to there, Pamela advised me to send an email to two email addresses, which I duly did. One came back saying the mail box was full and the other gave another issue this morning. My husband who is the account holder then called Cell C again, and an Mpumelelo called me, and after explaining what I required from them, once again assured me that he would get the relevant persons to do the email/letter and sounded more competent, but to date, there is still no letter/email. Such bad service! Definitely moving on to another service provider.