Did you pay them in full Lynn? And do you have proof of your payment from them, or even a western union receipt? Do you still owe them money? I would contact a lawyer, and perhaps the original creditor if you can just to see where you are at. Write a cease and disist letter, also ask for proof of payment thus far before you enter into any further payments.You may want your lawyer to call to determine your actual debt still outstanding.Stand your ground and don't be bullied. If you are in a situation where they are disrupting work with the calls, talk to your boss first, then your coworkers and explain the situation. If you are honest, most people will understand and help you. And most importantly, pay your debt as quickly as is possible, just be sure it is the right person you are paying.