In breach of data speed SLA.

I need to report a bad Vodacom signal in my area. I have called *** to report and get a reference number but the call continually gets cut-off. The LTE or Data speed is below 1 Meg for download and upload speeds. I pay for three data connections with Vodacom but all is way below the speed that I have a contract for. Please contact me so that this can be resolved urgently !! I use the Data connections for work and require it to be at the speed that I am paying for.