If you've received an email saying the email address used is not in our database, then the following is your best course of action:
In most instances it's because the email address registered against your account is slightly different from that you have inputted into the password reset form.
1. The first and obvious thing to do is try again, maybe auto correct or such like made a change when you inputted it.
Assuming that's not the case then:
2. To find out the actual email address on your account you will need to contact your Department Boss/ Approver/ or an Admin level user in your organisation.
They will be able to navigate to their User list and see the actual email address on your account, and if necessary correct it.
3. Another reason might be that the Admin user on your account may have made changes to the account.
Again, you will need to contact your Department Boss / Approver/ Admin user and ask them to check the email address registered against your user profile.