You can update your personal contact details (address, telephone number etc) from within OVID.
To do this login to OVID. At your homepage click on your username in the top right hand corner of the screen and click on the "Your User Profile" link in the drop down list:
At the profile page you can amend your name, address and telephone numbers:
Check your details and amend as required. Once you are certain your details are correct and you have made the changes you require, scroll to the bottom of the page, and click on the button to confirm.