I am on the National Do Not Call list. I received a call from 407.434.9999 and no one was on the line. I redialed the number 407.434.9999 and the recording says "the number you dialed is not in service".
Had this same outfit call a couple of years ago. It is called "Card Holder Services". Reported it to my state attorney general the last time. They had me fill out a couple of forms. It obviously went nowhere.