If you are unable to withdraw the funds and the message "You must complete the verification process ..." appears, there is nothing to worry about.
You need to verify your gaming account. Please go to your profile page and click “Verify”.
In order to verify it, upload a photo of you or both sides, confirm the data, and then take selfies with the camera.
The program will check your photo and documents and perform the initial profile verification within a few minutes.
Do not worry, your data will not fall into the wrong hands. Verification is needed to exclude persons under the age of majority from betting, as well as players using various fraudulent schemes.