Bad marketing and feels like a big **** and once you in the contract you cannot get out

Very bad experience feel like am being ****med and forced to remain in a contract that I dont want told them a several times to cancel it they always making excuses even lying about calling me back and I hanged up... Just want the contract to end have important this to do with the money they want me to waste on them cant pay R4700 for a R500 devices with empty promises of vouchers and a simcard that I never received even a single cent on... Just want them to end this contract thats all