Hi,
I got the same loan scam with you as the phone installment one. He also transfer me $300 and ask me to pay $150 for defer one week later. After he got worse, 5 days later ask me defer den 2 days later.... I have made a stupid mistake. Transferred him about 1.7k. I also same as you... scared tat he call my NOK and my office. But it got worse... After making so much money to him, he still wan me to pay $2.2k to close case. I have decided to tell my NOK and make a police report and blocked them... I made my police report on 25/12. Till now, I only received one threaten msg from them and they also make calls to me but i blocked all private numbers. My NOK receive calls asking if he wanted to loan. Got one even say his name out.
Go make police report, block their numbers and close your bank account.
All the bros and sis here will give u the same advice. Fight with them... Tell your father and supervisor that you got scam.