Rock Stone service interview questions

1st they will ask about you, then they will try to build rapport with you and tell you to sign a piece of paper and ask for 500 taka for the form. After that they will charge you 10200 taka for the training and I immediately asked for refund. At first they weren't willing to give it back but I started to make a fuss and they refunded and threatened me to call police if they ever saw me near their office.