Yes, I understand that it was an accidental mistake, I did not keep the 2FA code permanently.
The problem is here:

I updated the
authenticator of all the gambling sites that I have, because since I have not visited Rollbit.com casino for more than a month, I don't keep it permanently.
What I want to ask is, should I contact the support to get back the 2FA code, whether you need KYC or there are other ways I can do safely and easily, maybe the community here has experienced things like me right now.
I hope your day is fun.
Here check this
https://help.rollbit.com/en/articles/6176907-how-to-add-or-recover-lost-2fa follow what has been stated there. Rollbit support would gonna help you to solve that issue and as far as I know they would ask for a KYC to verify the ownership of your account.
This is how useful to do KYC since we can easily prove
thatthe account
is belong to us if there's certain issues like this
occurhappened.
Also experience this kind of issue before but on other platform and the support help me to regain the access of my account when I provide those necessary documents they asked.