In order to edit your personal details, follow the instructions below:
Step 1.  In the top right corner, click on hamburger menu.
Step 2. In the hamburger menu, select View / Edit my account
Step 3.   In the same menu, click on Verify forget sign in recovery contact. 
Step 4.  Enter "Recovery e-mail & mobile number". 
Finally, your " Forget Sign-in details will be changed".


RoadMap for Account Recovery:  Click on Hamburger menu -> Select View/Edit my acount -> Forget Sign in Recovery contact -> Enter Recovery email & mobile number -> Click on Continue button -> A verification code has been mailed to your current Account Email -> Enter the verification code and finally click on confirm button.