Let`s start with adding your story as a review here
https://www.forexpeacearmy.com/forex-reviews/5374/www.plus500.com
First of all, invite the company by using the invite company option to your thread. And if you are unable to locate the option then this thread "
Tutorial: How to Invite a company to your thread." will help you to find out.
Note: Invitation button will be enabled when your thread passes 96 hours.
Note 2: Make sure to follow the suggestions correctly, when you do it correctly you will get below message in your thread automatically.
Note 3: Make sure to share your account number (Only account number). Many time this help companies to find out you are genuine or not.