In their reply BC.Game stated they were co-ordinating with the third-party game provider and that the provider requested they withheld the funds. That post was made on 1st August 2024 therefore nearly two weeks have passed. It cannot be easy waiting patiently for any length of time when a huge amount of money is at stake. I hope they update the thread as soon as any significant development occurs in order for this matter to be concluded.
Since then, I've received updates and more information, thanks to [helper] and [support]. It seems that the provider requested an investigation, and my account was closed as a precautionary measure until the investigation is complete. As I understand it now, my account wasn’t closed due to a ToS violation.