This is a scammer, I first received this call from this number months ago about a "due balance" on something I know I paid off but they refused to actually prove I owed anything, saying it was my job to prove I paid it. I ignored and blocked the number. I received a phone call today saying that it was now a LAW GROUP not a collection agency, wanting to "help me". When I researched it and found that people were crying "scam" I knew it was right. Going to block the number on my phone i found that it had already been blocked! 100% sure its a scam!