Scam of the Sunpor Group

[MaemaeMemZs 29]

Good day, there.

I used the metatrader5 platform and the sunpor limeted group broker to trade through a buddy I met online.
As a consequence of the transaction, I purchased at 1.41058 and sold at 1.40612 in the GBPUSD.a transaction I made between 16:02 and 16:08 on June 16th.

During this time, however, the GBPUSD parity on the chart did not go below 1.40612.

It was said in my interactions with the broker that there was no problem and that I had made up reasons to lose.
Furthermore, they did not answer to my repeated queries and acted in a threatening and unpleasant manner.
They even threatened to track me down and demand additional money from the mafia.
I have all of their paperwork.
Is there anyone with experience or advice on this topic? 

[ScrawnyDoom 7]

Here is the chart!
 

[Duelf 50]

It's unclear whether the firm you're referring to is known as Sunder or Sunpor...

Are they, in any case, regulated?
If this is the case, you should notify the appropriate regulatory authorities.
If not, you can still attempt contacting your country's regulator as well as the police. 

[ScrawnyDoom 7]

It's the Sunpor group that has been limed.