asking about my payment

hello Nelly, my name is Yen Bui. i have a question about my target credit card dept which i dont even know anything till now. i applied for target credit card a year ago, but i didnt get their approvement. now i just know that i owed them the money and it became the debt to your guys. i dont even know what happened. however, i want to pay off everything now because i dont want to effect to my credit history. i call you guys a thousand times, but nobody picks it up. would you please tell me how to contact with you guys to pay off and clear my debt!! if you recieve this message, please reply me back or call me as 469-258-9460. appreciate it.