Unfair treatment by Webafrica

I was with Webafrica for more then 2 years in this time they could never provide me with the service i was paying for 500mbps. When i logged the problem then they just close it as solved a day or two later then still using them i changed fiber service provider but the same pattern continued so i came to a decision to cancel my service with Webafrica. My instruction please cancel my service with webafrica my fiber service openserve so the expectation will be after the two month notice i will have no connection with webafrica who failed me. No i wet a invoice saying only internet has been cancelled but not voip. Goodness now how can that be i just cancelled my service with them and how can they provide me a service without internet and i never could use viop because webafrica failed to secure my landline but whats new they can not get anything right. When i logged the faulty invoice i was told i have to pay two months for voip a service they can not provide me and that i have canceled. They reported back that their management decided the voip service was not canceled can you believe this. Please be careful of this company thats why they loosing clients.