Threatening to blacklisting me after cheating me with promise of job

Dear All, One day a girl from dice.com called me for a job in HCL as a Software Engineer. She said we have connection with HCL we will get you job with hasslefree process. They called me around 11.45 am and askEd me to pay Rs.2000 to generate the test link (aptitude test). They told me that I have to pay before 12 pm because test would start at 12 pm. I didn't get the time to think and I paid that amount.
After that phone number is continuously switched off and on another phone number they are not answering my calls. I message them request them to return my money very politely initially. They don't even reply in my messages. After fed up with this I lost my control and I send some abusive words. Now they are threatening me that they will Blacklist me and I will never get the job in my life.
I'm scared now. Please help.

The incident shows that how gullible you are. Your penultimate statement confirms it. At least from now onwards beware of tricksters. Is it not understandable the "Dice.com " is not at all a recruitment agency to employer? Then, how can they black-list you so as to prevent you from any future employment? Better leave it as it is. If not lodge a criminal complaint with the Police if you are prepared to shell out some more money.