Bad service

I have been calling Cell C because my signal is very poor and I was transferred to the Technical department and spoke to a consultant by the name of Charmain who promised to send me settings,i never received them. I called again and spoke to another lady who gave me the settings that does not exist. I tried to call again and a consultant by the name of Potia said they are transferring me to the technical department but the call was dropped. When I call now it just say iv reached you out of your operating hours. All I need is the settings so that I can connect to my network as it is very poor and I am unable to work