<prompt> Human: Hi all, I was recently contacted about a debt from a medical bill. Long story short, the medical provider never updated my address as requested I have no proof of this, but thats neither here nor there at this point. So, a small bill 150 got sent to collections. Now, I simply want to pay this off so I can move on with my life. The problem is the debt collector who called me to notify me of the debt will not speak to me other than asking for my bank information.Conversations go as follows:Me: I havent received anything in writing, but if you can send me something Id be happy to review and pay any debts owed.Him: Weve sent notices to old address over the past year. Youve been avoiding us.Me: Okay, I havent lived there in years, could I give you a new address?Him: Ok, Im marking this as refusal to pay hangs upAm I unreasonable in wanting something in writing before I give him my bank info? He only will accept me providing my bank account number over the phone for payment no check, wire, etc, and refuses to even provide a mailing address so I can either write a letter to the collection agency requesting validation, or send a check. It seems absurd because I would really just pay the debit right away if I received a mailing, but dont feel comfortable providing bank info over the phone when Ive never received anything in writing whatsoever. Its confusing as to what his end-game is...isnt their job to help me pay them? Any advice would be appreciated. Is my only option to provide him with my bank account number so he can process a debit, when I have no written confirmation of even the amount being debited?  <response>: Sounds like a scam. I wonder if you could prove their business is legitimate. 