The issue of receiving the email late may be due to some problem in their backend. This is not a big problem and can be done quickly. Many types of casino sites are promoted here due to which the competition is very high due to which a small problem is being discussed a lot. Although in the case of forgotten password, it is normal to be a little annoyed when the reset email is received late. Because a user resets the password only when that platform needs to use its instant. So in this case, it is normal to be annoyed about this issue. But here I see that everyone is discussing this issue in a very excited way. The issue is interesting.
Emails can come later than expected and you can get this issue with centralized exchanges and confirmation code for your withdrawal request too. There is delaying time but usually it is not too long waiting time and users can request a new code that can come instantly without delay than previous attempts.
Losing access to an account is uncomfortable experience and getting trouble with recovery process is more troublesome. It is not expected by any user as they would like to recover access to their accounts as fastest as possible. Sometimes it relates to their urgent need of submit a withdrawal request and it sucks if the recovery email can not come promptly by technical issues from an email service provider.
From my understanding, there's something wrong with the email provider or the automated system that distributes the emails for promotions etc. As PX-Z also mentioned, I'm also not receiving any promotional emails for the past few weeks, so there's certainly something wrong. It might not be a major issue, but it should have been fixed by now. Hopefully it will be resolved soon, but till then, the password reset process will have to go through their support team.
They can work to fix the issue and even contact the service provider for escalating support. If issues repeatedly occur, a serious consideration of changing email service provider to a new provider is reasonable. It does not make sense to continue using a provider that can not provide good service and fail to resolve its service's technical issues many times.