Pathetic Telkom LTE Speeds

I have the Telkom unlimited LTE package with the Huawei B315 router. For the past week we have only been getting speeds of 0.5Mbps download and even poorer upload speeds. I am in the Westville North area. For LTE this is pathetic and cannot be so slow. There is no number to contact for LTE and when you contact Telkom you get the run around. Please can someone help with this.