[net.wanted] Does UNIX/World have an 800 number? Who do they bill?

ado@elsie.UUCP (06/14/84)

I've received a note (a second) from UNIX/World, reading (in part):
	THANK YOU FOR YOUR SUBSCRIPTION ORDER TO
	UNIX/WORLD. PERHAPS THIS INVOICE AND YOUR
	PAYMENT CROSSED IN THE MAIL. AVOID INTER-
	RUPTION...PROMPT PAYMENT WILL ASSURE
	CONTINUED SERVICE. THANK YOU.

I fail to recall ordering a subscription.

Are other folks out their receiving such bills?
Is there an 800 number I can call to straighten things out?
Thanks for any replies.
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UNIX is a trademark of AT&T Bell Laboratories.
UNIX/World may be a legalism of some entity.
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	...decvax!allegra!umcp-cs!elsie!ado	(301) 496-5688