Make sure the images you have taken are of very good quality and that support can see all the details on the ID (which has got to be a passport / drivers licence).  The recommendation of getting these images is to use a computer scanner for the ID and then using a digital camera for the photograph of yourself with the ID.

Sometimes using a mobile phone to take the photographs of the ID and yourself do not always work.

If you are still struggling with this, email support@chaturbate.com with the copies of the images you are trying to upload to the site with your username and ask support why they are not accepting them.  Hopefully they will reply with a easy to follow answer.