This just happened to me as well.....
You should definitely call apparently they had some sort of system bla bla bla and accounts were converted (check your online account you should see 2 SP accounts) but they didnt send out any cards.
I sm'd them and this was the response....
****
Dear lfas25
Thank you for taking the time to contact us again in
regards to your Chase Sapphire card.
Our records show that your cards were mailed on 10/01/2013
at the address listed on your account.
If you do not receive it in 10 business days from that
date, please call us at the number below for further
assistance.
I hope the above information is helpful to you. If you
have any further questions, please reply using the Secure
Message Center.
Thank you,
****
I wonder why it took so long...