Disgusting attitude from Cell C call Centre agents

If I could give a 0 star rating I would. Disgusting service. I am absolutely disgusted by the service I have received from the Cell C agents from the call Centre. The rudest agents I have ever come across from both the upgrade department and tech support. I was told my Sim swap was denied due to error on their part but they began to become more and more frustrated with me as I was not receiving the OTP number. I was then told to wait 3 hours so I questioned if they'd still be opened at that time, the agent then responds "can you not count? 3 hours from now is 5pm!". When I asked the agent her name, she then cut the call in my ear! I am beyond disgusted! I have never had a worse experience than this ever.