Maybe you violated some rules? Maybe you used coinbase to transfer crypto to gambling sites?
I do not know either I have violated any rules or not. For transferring fund to any gambling site can be a reason for temporary disable of my coinbase account?? I do not think they disable account for sending fund to gambling site. Are you sure that they disable account for transferring fund to any gambling site??
You should read again the TOS of that exchange again to understand why ,if you really use that wallet for gambling then that's might be the primary reasons why your account is now blocked.
If you are a gambler I suggest to use wallet that you have full control and you own the keys not a custodial wallet like coinbase. You can also read this guide to how to avoid being blacklisted in coinbase .