Extremely poor network

Last month i took a data contract withVodacom at Umlazi megacity. I specifically asked the lady to check if there is coverage in my area and she assured me that there is coverage. Its almost a month now, im experiencing extremely poor coverage, be it day or night. I survive because of Telkom router. I tried to email them on their complaint channel found online with no response. Come month end what exactly will i be paying for since i can't use this data when i need to. If they could investigate coverage at meyiwa avenue umlazi. I am now stuck with a 24 months contract that is not useful to me.