I'm surprised to NOT find this number already on 800 notes.
I just got a call from this unidentified phone #, so I didn't answer it.  Someone else reported they DID answer and here   is their comment:

"1-636-448-7762 Reported 7 minutes ago
automated call said I could lower my interest rate on my credit card. push 9 and stay on the line to get more info. I hung up. and blocked the number. It does not even tell you a name of a credit card. I am sure it is a scam."

Answered call, but then they disconnected the call.

Same as Dean, I answered, did not say anything and they disconnected the call.

I received a call from this number, but I did not answer the call, nor did they leave a message.

I have a missed call from this phone number.  My credit is 100% excellent and i have no debit... If it is regarding a lower your interest rate it is deffinitely a scam