Paying for an ADSL line that I don't have

I've placed an order through Afrihost to convert my telephone line to ADSL. On the 15th, I got an email saying that my ADSL order is now complete and they started billing me. However, as far as I know, I still only have a normal telephone line. I've been sending emails and logging requests since the 16th and have not had a single response. I'm logging this complaint here as a last resort since I'm not getting any service contacting them directly. I've already paid prorata for this month's ADSL line rental and just received another invoice now for the next month for a service I'm not getting.