I got a free credit card application with the card attached and a charge of $249.00.I tore it up, why do i owe

I seen an ad on tv for a free credit card application.When I got the application the card was attached.I read the form and seen a charge of $249.00 for the attached card. I called the card company and told them I tore the application up and didn’t wish to apply.They in turn put a [...]