Committing ***** on prescribed debt.

This is company that doesn't mind getting involved in committing *****. I had a son in school about 10 years ago. His father paid the school fees. Suddenly, my 2nd husband, not related to my son at all, receives an email showing that I paid a R100 per month till last year. I don't know why they would commit this level of ***** on prescribed debt. I have all my bank statements that can proof I did not make this payments yet they go this far???? Dishonest company