This number just tried to call me 9 times in a row.  I kept rejecting the call and it would immediately call me back.

Picked it up on the first ring and a recording was playing. Something about not being able to complete that extension as dialed? Suspected a scam, Googled this number and found this site. Looks like I'm one of many. So far, it hasn't called back. If so, I'll have it blocked.

Recording saying it was concerning my CC my cards were fine but I could lower my interest rate but the offer expired today, press 1. I just hung up.

Not sure who this is.

Said my credit card interest rate was going to expire and wanted me to push a button. I hung up.