Bad Network in Moreleta Park Area for Vodacom

Always been with Vodacom. Experiencing lots of network issues in the area I stay, Moreleta Park/Pretoria East. I've been living at the same address for over two years now and never had problems before. Upgraded my contract 2014/April and ever since have issues. I even have a refurbished phone. For the last 3-4 months I have had major issues if I want to use my phone at home. Signal changes within 1 minute from GSM-3g-3G-edge-EDGE-SOS. Even started to say to me that I have reach my limit on my phone. Vodacom advised me that it is my sim card and that I need to test it in another phone, so I did, if problem comes back I need to do a sim swop. Did one last week (R70 later) back on my new phone, but the problem is still the same and I am unable to make or receive calls and send messages. I logged a call with their technical department last night and could barely get to speak to the consultant as the call was dropping the whole time. I feel very unsafe as I live alone and cannot make any emergency calls. Vodacom phone me back today and said they cannot do anything about it and they need to install another tower and this will only be in a years' time. Call Ref: S3-8BN3C-CVGCY - Useless