Promises not kept , bad service

I bought a new computer at Incredible Connection Rustenburg , the Manager informed me at the purchase that they will activate everything in store and took all my personal details and copy of my ID etc. I live in Thabazimbi which is about 300 km roundtrip to Rustenburg . After my purchase the computer keeps showing that windows will expire , we contacted them and the first person we spoke to told us sorry they can not help us we have to take the computer to them on our own expenses ( please note this computer is used for business purposes so we can not afford to not work for a day ) the person refused to assist over the phone . We called again and spoke to another person which is willing to help over the phone but can not help us to solve the problem . She then sent us a contact number for Acer ( the make of the computer as they will be able to assist ) now we have to call them as well ,but the fault is at incredible connection. She is working at IT but unable to assist , if you ask me that is what you call incompetency. Incredible connection assured us they will activate everything which they have not done at all. Now we have to sit with the problem or take the computer back on our own expenses and lose a day of business .