Credit card scam. Do not give any information to these people

321-222-0000 Call showed up on caller ID as "Florida Number". Lady on phone said that it was in reference to my credit card account and that I had a chance to reduce my interest rate to as low as 6%. Also stated that this was my final chance and that I should press 9 now to continue. Sure sounds like a scam. No reference was made to what credit card it was, and the "last chance " is common to scamming.