Failure to activate contract as agreed

After enormous effort and being send back and forth, my contract was terminated and I accepted the quote ***, account number ***1-6 for a 3GB, 100 min line. Despite this now being two days later, I can still not receive any calls!!! I have spoken to a one Arlene and responded to the e-mail she issued and requested action but received no reply. I am a manager and without being able to receive phone calls, I am stuck.