Experiencing such a situation is truly terrible and I can only imagine the pain of waiting for over a month without a resolution for this case. And as mentioned by @BC.GAME here, if everything you've shared with us and the entire story is accurate then they owe you more than just an apology. I can't understand why they would deduct 88 mBTC in winnings from what appears to be a normal sports bet and from what I know this casino is reputable and known.
But the response from their live chat support is extremely disappointing and I believe that the dude who asked hou to intentionally losing your winnings should be fired ASAP unless he is acting under orders from the casino team, which would reflect badly on the casino reputation.
……
But this manager stuck to his story and said the decision was final. He also mentioned that he found it dodgy that I placed the exact same bet on another sportsbook, but there is a very simple explanation for this…….
You don’t even need an explanation, I must say that if this person also is involved with BC.GAME team and really said that to you then he is just trying to bluff and scare you so you don’t open a case against all this.
I hope to see updates from both parties involved in this case, and it’s important from BC.GAME's team to provide an explanation if all of this is indeed true. Beside that I would recommend that if you are considering any form of dispute resolution this case should be escalated to
casino.guru where they can thoroughly verify every detail you've provided and present the true story.