<prompt> Human: A couple of months ago, I needed to call my bank. I called the number on the back of my debit card.It sounded like a genuine call. I was greeted by the bank and everything. Except, they were giving me an offer that didnt sound too bad and very believable. The offer was something like this: there is a special going on for a product? for 20. I pay and get a 30 coupon in the mail for trying it out. Something like that. I dont remember.I figured, why not give it a shot then? So they ask for my personal information to verify me. And then it dawned on me... maybe this isnt the bank? It sure sounded like my bank, but it just felt off putting.I double check the number I called and sure enough, I pressed 1 wrong digit. 1 wrong digit is all it took for me to think that my actual bank answered. I quickly hanged up and redialed to the correct number.Who knows how screwed my account wouldve been if I gave this scammer my bank info.Edit: He asked for my social security to verify my account and also wanted my debit card. I didnt give him anything.Assistant: What type of info did you give them before hanging up, to verify your information? Human: I didnt give any. When they answered, I told them I have a question about a charge.The guy on the line said that he can assist me but wanted to first present me an offer and he explained it to me, at which point when he was done talking, thats when I double checked the phone number I called. So all they have is my phone number and thats it.  <response>: Awesome. And like unandhp said, this might not be a rare occurrence. You should definitely give your bank a headsup, to possibly save other customers a lot of headaches. 