Need help Web Africa and Vumatel

[Rynoels4]

I am writing to express my dissatisfaction with the service I have received from web Africa/vumatel. I have been a customer for 7 months, but for the last 3 months, my connection has been very poor. I experience high ping, slow download, and packet loss. I have contacted web Africa several times and they have logged a fault, but nothing has improved. This is unacceptable. I need advice please