Why can't I buy on KuCoin?

Good afternoon, I'm encountering some issues with purchasing cryptocurrency on KuCoin. Could you please assist me in understanding why I'm unable to complete a transaction? I've checked my funds and they're sufficient, yet the platform seems to be blocking my attempts. I've also tried using different payment methods but none have been successful. Is there a specific reason for this? Perhaps there's a technical glitch or a security measure that I'm unaware of? I'd appreciate any guidance or insight you could provide to help resolve this matter. Thank you for your time and assistance.