OS X Mavericks Compatibility

I have been trying to get tech support for a week now and I realy spent a lot on ya ll product so it would be nice if I got some kind of help!!! this probly the 10 time I have try to reach your tech. I have problems with Cubase 7 i bout it brand new and i can’t even use this cause no one will give some support so please my god help me so i can use your software. its saids that online my product is activated and register but i still can’t use it for some reason 1-903-894-7889