Impossible to speak to anyone regarding an account

I am highly frustrated with Altech Autopage. The only number I have to phone is a call centre. Every time I get through to them I have to hear the same story. This is a corporate account and they will transfer me. Only to get lost in cyber space. I got given the direct number of the lady in Corporate accounts. When I got cut off once again I tried phoning her directly only to find that the number is not in use. O my word. So my phone is barred. Without getting any explanation as the only people that can help me doesn't exist. Worst, most frustrating experience I have ever had with a service provider. Can someone please get back to me.