I think maybe there are a lot of requests for KYC approval so that makes the process a bit slow, but it's also true that you might just need patience to wait for KYC to be processed, because what I know is that Duelbits can be called a big casino of course they also have a support service that is always ready to handle problems like this, it may be necessary to contact service support so that the problem can be resolved immediately, I have not completed KYC on this site but if it is required then I will do it.
Not only KYC request but also different concern that consume Duelbits support time. Also most the casino doesnt have the instant verification feature for KYC unlike exchange offer because they manually verify the documents or submit it to the 3rd party who verify KYC for them. I experience undergoing KYC on other casino which took me a week to play again. I believe 3 to 7 days is the standard waiting of KYC procedure on Duelbits.