Discrimination

My Husband and I separated. I called Direct TV to order service starting out on my own and was approved with good credit.
They charged my credit card and put in an order date. I was notified the next day that since my ex owed a bill they would not have me as a customer. When I tried to explain to them I was not on that account or even around him they were rude and informed me they were a private company and could do what they wanted. So now I am being discriminated against and held liable for someone elses bill.