Stake has four levels of a simple KYC verification process. The time for the processing of summited KYC will depend on the level you want to undergo. However, I don't think it will take so much time to go through this process and get approval if you submit the right documents using the stipulated format. The reason why some customers might have some hitches and face delayed approval is that they didn't follow the right procedures. But you don't need to go through the entire four levels to start depositing, playing, and withdrawing from your Stake account. For more guidance and clarification you can always contact customer support, they are always active.