Credit card overdue question

So I worked at a clothing store! Of course I got a credit card and of course I wasn't good with it I'll admit that! Well it's over due! My husband he will over exaggerate a bit on things! He tells me tonight your old work called today about your credit card and there name was he said that same name as my old boss! So my question is I thought only the cooperation of the bank they go through with the cards could know your financial information? Is this true or does your boss and everyone you work with know