Verification plays an important role as CEX.IO follows strict KYC/AML policies in its goal to promote Bitcoin as legal tender.
If your verification is rejected you should have already received an explanatory email from our Compliance Department stating reason/reasons for its rejection. In case you do not agree with the comments or need any help - please review these guides that outline document requirements:
Of course, if you require any further assistance you can always contact our support team via chat - they will guide you through the process.