Citibank Debt Collection Complaint

Citibank Debt collection department,

Credit card Communication tactics Used obscene/profane/abusive language Texas

I was contacted by - - regarding a debt. I asked question and he used an abusive and threatening tone. He continued to talk over me when I was asking questions. I then spoke with his supervisor regarding the call. - - was the supervisor I spoke with and he said that there was nothing to discuss and that they have removed me from the system. I do not need the torment and harassment methods that these individuals used to carry out there daily business. please help it is just plane wrong.