Vodacom wifi USELESS!!

I really just want help from Vodacom, I have 2 x Internet connections, One at work (Business internet) and one at Home (Home WIFI). For the past 9 Months I am not able to get decent download speed from the Internet. My download speed varies between 0.2 to 0.8 MBPS. When I installed the Internet about a year ago, I had very good internet service and I was very happy with it. I also have a Vodacom Cell phone contract, and there also I am very happy. I have reported my problems with Vodacom, but there were no improvement. Between my 2 Internet contracts I am paying More than R1000 per month. I also reported the problem on Hello Peter, each time someone from Vodacom phoned me, saying that they are very sorry. About 5 months ago, someone from Vodacom Phoned me and explained that the towers are very congested in our area (Danielskuil, Northern Cape), but they are working on it. No Improvement to date. The last time I put and review on Hello Peter, someone again phoned me from Vodacom, this time he did not apologize, he was to the point: If I am not satisfied with Vodacom's service, I am free to cancel my contract. I explained that I still have a year left of the 24 month contract. He said that it is not a problem, because I am not getting the service I pay for. However, when I phoned to cancel the contracts for the Internet, the person from the Cancellation department told me that I cannot cancel the contract and if I want to cancel it early, I will have to pay an R11 000 penalty. Now I am paying for a service I don't get and I am not able to cancel it. I need Internet at my work, but my current service are more than sub standard. Vodacom, What must I do now? Keep paying my debit order each month and be happy with download speeds of 0.2mbs??