called Navient and was told

Received numerous calls asking for someone who was not me, called Navient and was told it’d be taken care of. Still getting calls 3 months later. Received numerous calls asking for someone who was not me, called Sallie Mae and was told it’d be taken care of. Still getting calls 3 months later. This has been happening on two of my phone numbers, asking for the same person. I have contacted Sallie Mae through e-mail, Twitter and phone and was told that my numbers would be removed, yet I’m still getting numerous calls on a daily basis.