sellbackyourbook.com bounced check on goods sold to them and they will not respond to me. Montgomery IL - Internet

I found this company thru a google search while trying to sell back my college books. I followed the directions adn sent the books to the company and received my check as expected.

To my surprise, my bank refussed to ecept the check as it was on readable. I called and left several messages and have written many emails trying to receive a new check but haven't received a phone call back, email reply or new check in the mail.

They have ignored the issue since January 14th. Please help me retrieve my money and or stop others from being scammed by this company.