Terrible connection in vodacom's claimed 4g spot

Vodacom claims to have 4G LTE coverage at my location and on their coverage map, but I am only getting at best 3G with 0.4mbps download speed and an average of 0.1mbps upload speed for the past week now. The jitter on this line is 1656ms and the ping a terrible 803ms.

I literally cannot do anything on any of my devices with this connection. Half the time the speed test wont even run, how about that vodacom! But I am bound in a contract, paying for a product/service that I cannot access. If anyone knows my rights in this case please let me know, surely this can't be fair by the consumer protection act.