Why can't I exchange Skrill USD to Bitcoin (BTC)?

I'm curious to understand why I'm unable to exchange my Skrill USD funds for Bitcoin (BTC). I've been trying for quite some time now, but the transaction seems to be getting stuck or rejected. Could it be due to my account settings? Or is there a specific reason why this currency pair is not available for exchange? I've checked the market and it seems like the prices are favorable for a swap, so I'm really puzzled by this. Could you shed some light on the possible reasons behind this and perhaps suggest a solution? Thank you for your assistance in this matter.