No service from Vodacom Fibre

I was ****med by Jaco a sales rep from Vodacom to change from Vumatel to Openserve. Since the start of the Openserve contract we had problems. Now I am down most part of the day and Vodacom has yet to send a technician to find the fault. They keep on closing the service requests without doing anything to assist, but want to penalize me for canceling my contract. I am paying R1 200 per month for a service that I am not receiving. Please don't ever consider Vodacom Fibre as a service provider, as you will have endless problems!