What kind of service is this???

Afrihost is my service provider and yet I continue to pay every month for a service that I am not receiving. For over a year I have been battling with unacceptable speeds and intermittent connections. I originally was paying for a 4 to 10 Meg line with 100G of data but was unable to make use of the package due to poor service delivery. I have since downgraded to a 4Meg line but it appears that the line is only syncing at 2Meg, yet Afrihost is happy to take my money every month while I pull my hair out with frustration. I feel that their has been a breach of contract by Afrihost who have agreed to offer me a service in return for a monthly fee. I have kept my side of the contract but Afrihost have most certainly not kept their side. I cannot begin to explain how unhappy I am. I lodged a complaint on Sunday 8th Feb and got a response the same day to say that a complaint has been lodged with Telkom. I was impressed at the speed at which I received this response, however up to now, I have had no response from Telkom or any follow up from Afrihost regarding this unacceptable on going problem. Please, all I ask is for a stable internet connection with acceptable speeds!!!