Pathetic service ever.

I have a Vuma wifi fibre with SADV and it's only online between 11am-15pm and you report it on Whatsapp the response says you've been routed to the agent then you wait forever. Their service is so pathetic, you speak to a robot. I initially had 2 wifi, one at my parent's at Diepkloof and the other at Klipspruit west, I recently cancelled the one at Diepkloof and got one with another service provider that is working perfect. I now wish to cancelled the Klipspruit one and request a refund as I just paid 2 days ago. David Mntambo