Today around 4 pm... A lady just asked my phone to place a miss call... I was getting late for my tuition and as I didn't know her I told that I have no balance but she resisted by saying that it's just a toll-free number... I didn't know how to deny so I thought that it's just a lady... It may be an urgency.. So I gave my phone.. She placed a call and after a min. By 4:02 got a code from ad HULWIN... She noted down the no and left.... It felt so suspicious inside me that my intuition got me to check out about the number and I came to know that it was a spam she was a fraud... So now I am really confused and afraid.... i just don't know what to do so please HELP ME.... WHAT SHOULD I DO NOW?!!