Can’t transfer my bitcoin to my Trezor - coin base is not letting me.

I have been using Coinbase for a few years buying and transferring to my Trezorr religiously each month until this past week. They are now saying they need to review my account etc out of the blue. This is so unsettling because this is my hard earned money and the ambiguous answers from the help line is making greatly regret ever using Coinbase. Can anyone please give me some advice on how to navigate this so I can recover my funds please. I’m livid and so stressed out.

Thank you.