RimaAbas & joeangelo, it sounds like the issue is that you're trying to access your WordPress dashboard through your mobile devices, but are then being sent to the Mobile site instead. My suggestion would be to temporarily turn on the option to 'request desktop site.' This will tell your phone/browser to act like a desktop computer so you will then be able to login again. After you're done editing the Dashboard, you should disable this option. You can find this option in the browser settings of your phone.
candres: It sounds like you need to find a way to get Admin access. From my experience with WordPress, only Admins can change the user settings. Sometimes you can reset the password, if you have access to their e-mail accounts, this might be a route you can take.
If your asking about getting access to the mobile site -- shoot us an e-mail at email@example.com describing the situation and what you know about the mobile site -- we might be able to help.