XXXX Navient has accused me of being late on making payments, once in XX/XX/XXXX and again just this month for XX/XX/XXXX. In each case I have made payments for the amount owed, and each case Navient calls XXXX to XXXX times per day, they have sent letters, and I have spoken to XXXX sperate representatives. Navient reps. have told me it is against company policy to stop collection activities until they can update their system, even after I provided proof of payment. I have been receiving harassing phone calls many times a day for the past XXXX weeks, and I am told I would have to wait at least until the end of the month for the system to update. On top of the harassment, the amount I supposedly owe is XXXX and sometimes almost XXXX the amount I owed in the first place. Navient is harassing me and trying to collect on fraudulent fees and nonexistent past due payments.