Tried to cash out big chunk of my profits just to be hit with bank account freeze

Hi guys, i’m in a bit of a tough spot: i’ve tried to cash out near enough $100k of my btc stash through a well known exchange only for my transaction to be stuck and my cchase bank account to be frozen. The bank hasn’t been helpful at all, getting no real answers and feeling like they are avoiding my questions. They asked me for an AMLbot report, it came back 87% clean which should be good, but they are still holding my money up. I dont get it, the 13% ”dirty” coins i believe are some random coins i bought through the same exchange using only my paycheck money. Stuff like this has been happening too often lately and it’s frustrating to say the least

Trying to find out how i can take this experience to an end faster. I see people really are having a hard time lately to cash out any decent amount of their funds, and it really left me wondering why banks seem to target crypto transactions