I have been receiving numerous calls to my work place from a man name XXXX who says he is with City Management Group. He says I owe a debt of XXXX dollars for " XXXX XXXX ''. There is no such thin as XXXX XXXX it is known as XXXX XXXX. I found it to be very " shady '' I asked him numerous times to send me a paper bill to my address which they said they did but sent it to an older address of which i have not lived for almost 10 years. They kept asking me to " Take care of it '' over the phone using a credit card and i said i was not going to give any personal information over the phone unless I have verification of the debt via paperwork. They would not oblige, and kept harassing my place of work and I am a police and medical dispatcher. They called today while I was dealing with a call and i told them to politely call when I 'm not on duty to which he says " I never answer '' but they never call after XXXX which is when I 'm still at work. I hung up after telling him i was busy at work dealing with a call and i hung up. He proceeded to then call me back requesting to speak to my supervisor which is me. I told him that over and over how this debt would be handled and he has not obliged and instead harassed me for the last month or XXXX. And keeps threatening me with " further action '' Yet no " further action '' has been taken. 
The number they are calling me from is XXXX which is in XXXX XXXX. I 'm in XXXX XXXX. Ive researched the number and most websites have listed it as spam and harassing. I do not mind paying a debt if it is real, but i have reasons to believe this is not a real debt especially after I refuse to give them my credit card which i do not have XXXX and he tells me to go buy a prepaid card and put X amount of money on it. 
If this is a debt that i owe I gladly would pay it, but there are easier ways of going about trying to collect a debt and this guy XXXX has not done so and has been very unprofessional, rude, and threatening. I have recorded lines proving so.