MCI began offering a $35 Spiegel gift certificate to any customer who changed his or her long distance telephone service to MCI .
The company formed a partnership with MCI Communications Corporation that was aimed at increasing both companies ' customer bases .
MCI Communications Corporation began offering a $35 Spiegel gift certificate to any customer who changed his or her long distance telephone service to MCI Communications Corporation .
The company formed a partnership with MCI Communications Corporation that was aimed at increasing both companies ' customer bases .