Neal:

In my situation, MCI reps were not willing to give me the phone number for their central customer services. However, after they told me the name of the city, (I think it is somwhere in Utah), my wife and I called information number (xxx-555-1212) to get the central service number. It was a bit pain and I still do not understand why they were so afraid to give me a number that is already listed on the phone book.