A KYC at an online casino is not a big problem in itself. Many players have gotten used to that. It only becomes a problem if players refuse to provide this information. Often referred to as the terms and conditions, they almost always state that the casino reserves the right to perform the KYC, which will happen. Then it is only a matter of time before that takes place. A KYC can, however, be carried out in 24 hours. I often wonder how casinos check such information, since they don't have access to the local authorities for information