Webafrica robbing customers with poor connectivity issues

Good day, I took uncapped fibre with Webafrica, from the very first month I experienced connectivity issues. I tried to connect them on the What's up line/chat, but no one even made connect with me. I decided not to continue with their services and did not pay the new month's premium as a means to cancel. Eventually, yesterday I got hold of an agent. I told him to cancel my services with Webafrica, he informed to pay before they can cancel my service! They've been failing me as client and now I must pay to cancel. This is ridiculous! I paid in the past and connectivity issues, now I must pay again so that they can continue with POOR connectivity issues and all the agent can say is " You must pay and give notice". Webafrica are *****ing from their customers! Worst Internet Service Provider ever+