scoresense They charged me 29.99 per month without sending me any information what it was for or how to contact them Dallas Texas

I went to creditkarma.com for an advertised free credit report. Next thing I know I am being charged 29.95 a month for a  membership with scoresense (whatever that is). Not only did I never receive any notice from scoresense that I was a member, but when I finally discovered the unauthorized withdrawals I tried unsuccessfully to reach them. My credit card was comprimised 2 months ago and I was told by my bank (not scoresense who was supposed to be watching out for that sort of thing). I finally reached scoresence and demanded that they close my account which they did but would not refund the 6 months prior withdrawals.  This is such a scam.  I never had any correspondence with scoresense  whatsoever!