overcharged and impossible to get assistance

I have been with webafrica for about 4 years, in the beginning things were great, but now i have cancelled my fiber line for 2 reasons. firstly i have noticed the openserve prices advertised online for new clients are cheaper than what im paying for i am paying almost 30% more on my line for the same speed and package as advertised, i can for never get through to their call center!! literally, i have been on hold for days at a time spending 15-20min on the line and still i cant get through, i log tickets and it takes days not 48 hours as they note to respond. i have decided to cancel yesterday as i tried talking to a live chat session with one of their team members and i stated that i wanted the price that was advertised and he just told me to go onto the website and then ended the chat immediately. i have had the last straw when they charge me more and leave while i am needing assistance, i get the feeling the company is trying to save costs and thus only have 5 call center guys available which never get through to anyone, i have sent webafrica at least 10 clients and have assisted a few people in installing the router which i recommended webafrica to. i would look at somewhere else for service.