<p>hey guys. i tried this back door link: <a href=“https://camel2.usc.edu/AdmCertification/Commit.aspx[/url]”>https://camel2.usc.edu/AdmCertification/Commit.aspx</a> and logged in but claimed that my login was invalid. when i go to this link: <a href=“https://camel2.usc.edu/AdmCertification/ThankYou.aspx[/url]”>https://camel2.usc.edu/AdmCertification/ThankYou.aspx</a>, i get this message: "Our processor did not accept your credit card. Please double-check your credit card information and try again. Should you have continued difficulties, please try a different card or contact us at (213) 740-1111. " what could this mean?</p>