Last two weeks I am trying to receive a SMS confirmation code from Webmoney to withdraw WMZ but I can't. Support tells that status of message is “delivered” but the SMS didn't reach my mobile. All other sites/people send me SMS without trouble. Support were friendly in the beggining, but they didn't solve the problem and then stopped answer. It is not possible to change phone number in my webmoney account but it could be solved easily, sending manually the code to my e-mail, support page or WMkeeper message but they don't care. I can see many pages in web about this problem. You use Webmoney for years and then you can't receive SMS anymore and lose your money... Stay away from Webmoney.