Phone Tools Unavailable

I have never been able to access phone tools online.  Since day 1 of getting cox service.  I have called multiple times, chatted multiple times, have a service request # etc and even today talked to someone at 2nd tier but sitll no resolution.  My incoming calls are going to a voicemail that I never set up - I never wanted and now some of my incoming calls are being blocked.  I keep getting the run around.  Now they tell me that its a software upgrade that has been in progress for months and won't be resolved until sometine in July and I just have to deal with it.

What a piece of ** this service is.  - By the way they told me access phone tools to figure out how to access voice mail - duh!  If I could access phone tools i wouldn't have a problem!  I didn't wnat their voice mail and don't want to block my incoming phone calls especially from my kids - my kids couldnt even call their dad on fathers day - calls were blocked. This is so ridiculous.  

Does anyone know corporate # that I can call to get help.  By the way I urchased the highest internet with the premier contour everywhere service and I get horrible service and all i get is that they don't have extenders in stock - 6 months later.