I received a phone call from a debt collector with FFIF-ACM Opportunity Fund claiming to represent XXXX Hospital in XXXX FL. I recorded the call which lasted for XXXX minutes until the representative hung up on me. I informed the representative that I was recording the call at the beginning of the conversation. I asked her for the address of the company. She asked me why I needed the address, and I informed her that I only deal with financial matters in writing. She refused to provide it to me. I asked ten more times for the address, to which she replied that she could n't understanding me and that I was cutting out due to my bad reception. She then stated that when I have better reception, I could call back and she would give me everything I needed. She never provided me with a company phone number and the call came from an unpublished number. She also refused to repeat the name of the company when asked. I attempted to validate this debt with another debt collection agency that formerly owned the debt ( XXXX ). The debt was never validated and was removed from my credit in 2013.