Well yes, that is very easy to say, but it is another thing to be inside with the problem, if OP needs to get the money quickly, he needs his case to be Attended to as Urgently as possible, otherwise something has to be done Urgent to be able to attend to you, I have been in those situations and the worst thing they can tell you is to wait and be patient, that kind of makes the person get Annoyed and get angry at the casino, and sometimes the Support agents are the ones who They are to blame for that,that's why the support in a casino the more humans than AI there are to serve, the better.
The KYC verification process usually doesn't take a long time and on average it only takes 24 hours to 48 hours so more than that time we will have a question mark so that the thought that the casino is a scam will appear by itself.
Waiting and being patient is boring, so it's normal for every gambler to feel annoyed when they have to wait for confirmation for several days.
I myself have never had a problem with any casino regarding KYC because a good casino with a good reputation and qualified service will immediately solve any problems that occur quickly.
Most services that I've seen mostly have automated verification processes where if you meet the requirements set by default, your verification will be done pretty quickly, right after the application is processed, but if there are mistakes or problems like no clear documents or mismatching information, then the case is handled manually which takes more time.
When a case is handled manually, it depends on how many existing requests a platform has and your case will be handled according to that, most of the time it's on a first come first served basis so you will have to wait until the previous applications are cleared.