If you want to change Registered Email Id of the license, you may follow given steps:
Step 1 : click on license management in company menu.
Step 2 : Click on Change softlock email id or password.
Step 3 : Enter serial number and Registered password.
Step 4 : Then update correct Email Id and password.
And In case if you don't know the Registered password , you may follow given things:
Step 1: Advised to send mail to Support@busy.in with the latterhead request and invoice copy.
Step 2: Send with all necessary details like company name, contact person, mobile number, registered mail ID, sr. no.,etc.