Product: Debt collection

I was contacted by a recording from a XXXX area code that instructed me to call a different number back. I had been contacted by this same recording the previous week and was provided a different XXXX number to call back. When I pressed 1 as the recording said to do, I was connected with someone that hung up on me. So I called the XXXX XXXX number given and there was no answer. I called the number given on the previous recording. The male who answered said the call was being recorded and to bear with him while he looked up my information based on the " case number '' I provided. He came back on the line and said that he could n't find it under that information and asked for my name and phone number. By this time I 'm suspicious and asked for his company name and location. He quickly stated that he is from Alternative Dispute Resolutions and informed me I 'm being sued over a debt and to hold on a minute while he looks up my information. To which I asked if I could get his company 's location and business address. I also informed him that I was familiar with my credit situation and did n't have any reason that some one should be suing me. In return I got a tirade of how I should keep my mouth shut and listen until he 's done speaking and he does n't have to help me. He ranted about how he was n't going to give me anymore information until I shut up ( which I was only trying to finish my sentence -asking for his company 's place of business ) He also continued to rant about a number of things and how he was n't my husband or boyfriend and I could n't talk to him that way ( I quite literally have a severe XXXX which means I can only speak in small spurts and very low volume. ) I am not sure what way he was referencing because I barely was able to say anything. Then he said I 'll never even know why they were calling and I would just find out when I 'm taken to court and he hung up on me. I called back to see if maybe I could get someone else and as soon as I asked him for his company address he went on another tirade of how it was a courtesy for his company to contact me and I only called back to cause problems or something to that effect ( it was honestly hard to keep up with ), I tried one time to interject and possibly get him to calm down, to which I was met with the same voice raising rude comments. By this time all I could do was chuckle because it made absolutely no sense what this guy was doing. Then he said if I want to laugh I can laugh to a dial tone and hung up again. I still have no idea if this awful person even works for a real company or if this is some sort of scam. I only provided him with my name and phone number. I hope that is not enough information to cause me any harm. The only information I have on the company is it is supposedly called : Alternative Dispute Resolutions The phone number on my caller ID that I received the recorded message from was XXXX The XXXX number the recording provided on the call received last week was XXXX - this is also the number I reached the rude person mentioned above at. 
The XXXX number the recording on the call received today was XXXX which no one answered when I tried to call that number. 
I sincerely hope that the call was recorded as the person who answered said it was if this is in fact a real company.