I spoke with the EOS CCA representative ( male ) on XXXX ( XXXX ) XXXX on Tuesday XX/XX/2017 ( XXXX ) about my supposed debt to the XXXX Property Tax Department . I advised the rep. that I did n't own one of the vehicles that were listed and that there is an error that I have to discuss with the Tax Department themselves. He said he was notating file to wait before contacting me again, for either me or the City of XXXX to provide resolution if possible. However the next day I receive a frantic call from my mom ( who is battling XXXX ) who asks me why did someone call her asking for XXXX ( I do n't live with my mom-she lives in NY )? She stated that the person ( male ) called from XXXX ( XXXX ) XXXX @ XXXX on XX/XX/2017 and she asked why are they calling her private line regarding XXXX ? She continued to state that he does not live here & since they called her line she demanded to know what that the call was about & where he was calling from. The man just plainly said it was a private matter & hung up. My mother started to assume that this was a prank/scam & the worst. When she called me 5 minutes later, frantically asking me if I had any knowledge of anyone calling me or trying to reach me. She was clearly upset and I explained to her I did not know but to supply me the phone number that called her. Sure enough, it was someone @ EOS CCA so I immediately call them to inquire on why would they not only call but involve someone else about a private & personal matter. They put an unnecessary worry in my mother 's mind when they had no right to contact her. This unnecessary aggressive behavior went way too far to my liking & was what I consider harassment to me & my mom. This was done despite the notes the rep. marked in my file not to contact me until I had called back. When I finally reached a representative ( female ) @ the agency, I tried to explain the contact I had with the day prior & to inquire why did they harass my mother in NY, when clearly the file was noted. The lady ( rep. ) gave me attitude, very disrespectful & sighed repeatedly, talking over me during the conversation. I was appalled, so I asked to be transferred to her manager ( XXXX-female ). After reviewing my complaint, XXXX the told me she too was going to escalate a complaint clearly stating the egregious errors her staff made & apologized for everything that had occurred. She told me that the internal complaint department would quickly find resolution in the matter. She said that the 1st rep. that I had spoke with, notated the incorrect secondary claim instead of the primary claim screen. This caused the second representative to call me ( in which they did not, instead, harassing my mom ). She said that was not proper protocol and could not tell me where the rep would have called my mom instead of me. She advised me to follow up the next day with the complaints dept. at the same time I explained I would see how they handle situation before I proceeded with any further action. When I did follow up with the complaints dept. ( XXXX ) XXXX, it seemed like any resolution to the matter would be handled as an internal matter. I asked if they were willing to provide in writing, a document explaining why they took the actions they did in writing & they refused. I asked if I contacted your agency, would they be forthright with providing your agency the information, and she said they may or may not comply depending on the internal investigation. I feel violated, I also feel that contacting my mother who has nothing to do with my personal matters when she demanded to know why were they calling her was harassment. My mother is not well, I do not involve her in my private matters as she is sick, & like any mother would, worry about her son 's well being.