You can register on the ExpertOption platform in two steps:
Registering account through the website
Here, you’ll open an account by providing identification and contact information. Then, you must read and accept 
the company’s contract, its Appendices and all terms and conditions mentioned in the Contract Policy.
Customer verification process
This allows ExpertOption to confirm the accuracy and completeness of the information you provided during the registration process. At this step you will be required to provide the following:
Scanned or digital images of identification documents such as ID or passport. These will prove your identity.
Proof of actual existing accounts. These can include the bank contract issued when opening a bank account or a scanned copy of the front and back of your debit card.
The verification process must be completed within 10 working days after ExpertOption receives your request for registration. In some instances, ExpertOption might increase the verification process to 30 business days.
Proof of Payment from ExpertOption
For most new traders, getting your earnings withdrawal approved and seeing money in your account for the first time is the final step to proving a specific platform is legit. I frequently receive questions regarding the legitimacy of the ExpertOption platform. Now even though I’ve written several articles pointing out that this platform isn’t a scam, today I’ll go a step further.
Below is a snapshot of my trading account’s withdrawal section.
Here is the confirmation of receipt in my WebMoney e-wallet.
So if you still have doubts about opening a real account in the ExpertOption platform, I can confidently assure you that once you earn money trading, ExpertOption will always process your withdrawal requests.
General Risk Warning! your capital may be at risk