Telkom Fibre issues and bad service

I have been experiencing high latency in the evening for the last few weeks. I tried restarting my router with no change. I held on for 30min between 8.25 and 8.45pm tonight. When I eventually got through to someone the line went silent. I called back immediately and it said I have called them outside of operating hours. Firstly, the fibre is giving me issues, secondly, the service isn't great. Can you please sort this out.