Why did Binance lock my funds?

I'm a long-time user of Binance, and I've always trusted their services. But recently, I was shocked to find that my funds have been locked without any explanation. I've reached out to their support team multiple times, but I haven't received any satisfactory response. Can you help me understand why this happened? Is it a common practice for Binance to lock funds without prior notification? What can I do to get my funds unlocked? I'm really worried about this situation, and I would appreciate it if you could provide some insights.