How do you know this? Are you any of the representatives of bc.game?
If what you shared is true, I guess there's nothing wrong with locking the account as OP intended to abuse the system to get the bonus. Multiple accounts is a BIG no in casinos all the time & having multiple account for abusing the referal bonus isn't obiously something any casino will tolerate. I don't think bc.game is wrong here if what you shared is true.

OP, can you please confirm the above statement is true or wrong? If you are tryinmg to abuse, what do you expect from them either?