DON'T CALL....1-800-833-5313 ext 7719. That's just one collector. Call them at 1-866-429-7605..give them your phone number and request no further calls.
Pretty simplistic process being they have to follow federal laws in regards to removing wrong phone numbers. I'm pretty sure they want to remove the wrong phone number because it wastes their time to be talking to someone they can't collect their money from!!
If they don't take out the phone # on request, they can recieve BBB complaints. If it doesn't stop callback and talk to a manager, then it will stop FOR SURE!!