World Financial Network National Bank WFNNB Harassing Calls Columbus, Ohio

WFNNB has been calling starting at 7:55am to at least 9:00pm or a few minutes after. They continuously call about 10 or so times a day. Majority of the time, I am working during these hours. I did answer the phone call once and said hello, but they just hung up. It's getting ridiculous because I try to answer the phone, but no one ever says a reply. I even tried calling the number back but they just ask for my account number without saying anything else. 

I even told them to stop calling me because I didn't appreciate it, but they continue to call even though I've told them multiple times to stop.