I received a call from XXXX. On my caller ID on my Cell Phone, it showed as XXXX XXXX. 
I answered the phone to see who was calling. If it was XXXX, which I have never done business with that I can recall, I wanted to make sure I was on their XXXX list. 
The rep came on the line asking to speak to me. I said she was speaking to me. She wanted to verify my address " for security purposes. '' She never identified herself as being a debt collector, that she was attempting to collect a debt, or what company she was from. She only advised that the call was monitored and/or recorded. I do not recall the name. I did not have anything to write it down. I advised that without knowing the company she was calling from, I would not give any other information. She said she would notate and hung up. 
I called back the number to learn they are ERC. They are trying to collect on a debt that I owe to XXXX. When I asked if they are masking numbers, explaining that I got a call that was coming from " XXXX '' she said they have many numbers they use. 

Problems with initial call I received:1. Deceptive phone number usage. 
2. Not identifying as a debt collector3. Refusal to provide company name when asked directly for it. 

I know for a fact that debt collectors have to identify they are attempting to collect a debt ( when I called back, the only way I knew they were attempting to collect a debt was when the person told me the company name ). I also know that they *have* to provide the company name when asked.