fraud

A Facebook friend I had for a long time came on WhatsApp 3 or 4 days ago. Suddenly, he said he came from the UK to India and went to Fanshawe airport. He said he couldn't convert money from UK pounds to Indian rupees. Then a lady called and said they wouldn't let my friend leave until a yellow card was registered. She said it would cost 25,000 to make the card and asked me to send the money, promising to return it later. I felt pity and sent the money. But later they started asking for 55,000 to convert UK pounds to Indian rupees. Then I realized it was a scam. Please don't fall for such scams and don't help anyone like this.