Complaint Review: Paging America

About 4 months ago I received a pager in the mail,one i had not ordered, with a note saying it was free for 3 months. Forgetting bout it until i cleaned my bathroom rack out, I left it there, unused; I returned it with a note saying I was not interested in the pager or the service. Bout a month later(in Sept.) I received a bill stating that i owed $14.95! I tried and tried to call the number on the bill onlyto get a recording saying i had called during non-business hours and the mailbox was full,call again later. Afraid they would put it on my credit report, I paid the $14.95, only to get ANOTHER bill saying i now owe $29.95. Now i am angered and wonder what i should do.