If you have forgotten your WM-identifier number, you can search for it by your mobile phone number or e-mail address on the site https://key.wmtransfer.com you can also search your e-mail for the letters containing the phrase "WebMoney".
If you failed to find any results:
1. Register in the WebMoney Transfer system;
2. Get a personal passport in any convenient way;
3. Submit a claim Disputes concerning rights of possession of WM identifier. If you do not remember your WMID, then check the box "I do not remember WMID" when filing a claim.