got a call from the same number today...claimed they were my credit card company...said that they were going to decrease my interest rate to 6% and when i asked what my interest rate was before and he hung up...this is a scam...dont give them any detail

Here is the so-called scammer's website
http://consumercreditadvocate.net/index.html
we should do something to overload their servers.

I also got a call from this # saying someone is spending money on my CC. i don't have any credit so thought it was fishy...

Said it was my mastercard company. ?Funny I have not had a mastercard in years,  I hung up and in the process of reporting it to Mastercard.

we received a call from this number. PLEASE NEVER EVER deal with them or discuss any issues.

I got the same call, but I did not give any info.  I was told that because I pay my balances on time I qualified for a lifetime rate of 6% .  I asked what credit card they represented and was told visa and mastercard.  I called one of my credit card companies and was told that since I did not give out any personal info, I shouldn't be worried.

All I did was verify I paid my balances in full and on time.  I sure hope there isn't any kind of phone fraud involved with this.