Citi Management Group, LLC Debt Collection Complaint

Citi Management Group, LLC Debt collection department,

Payday loan Taking/threatening an illegal action Threatened arrest/jail if do not pay Texas

Citi Management group has sent me a letter and called and threaten to send me to jail if I did n't pay ... .they sent me a letter of debt. but sent me a deferent person letter ... .I brought this to there attention and they resent me the same letter but just change the name 's. The account number stayed the same and the address from NC. now they are calling me from deferent number threaten me to pay this or it will be turn over to the court and I will have legal matters. And I explain to then the I would like to take care of this issue but all the information is in correct ... My last conversation the man told me he was sending a letter to my payroll department and collect from them ... and then this guy - call back and told me that i was n't going scheme out of this and just hung up on me ... please help..