Today I got a mail from coinbase regarding my account closure due to the violation of their TOS,I am not sure what thing I did violated maybe deposit from gambling site caused this but the good this is they let me withdrew my remaining funds on to their wallet so I didn't ask their support what I did wrong,just withdrew the funds and proceeded to close my account because I rarely use coinbase wallet,so just wanted to let the people to know don't deposit any funds from gambling sites into coinbase account.
Ignore this if you guys already knew about this.
If it's about gambling, why Coinbase just allows withdrawals? I believed that will be a subject for checking.
During my early journey in crypto, I involved in a group of Coinbase users in a social media group
(during 2015-2016, Coinbase and XAPO are the most famous web exchange, at least in my own observation that time so I found that group) wherein some of them got account closed due to gambling. Coinbase didn't allow withdrawals easily and if I remember correctly, it takes several weeks to around month before those users got access to their funds. I believed those complaints are legit because they are really mad, disappointed, etc. but in the end, they still access their funds back. Coinbase also stated their violation unlike in OP's case.
I don't know if Coinbase changed its policy from back then
(well 4 years later) regarding gambling-related cases.
But whatever it is, good thing, OP got the funds back and that's what matters here.