Hi @maheswaridukka 

About Email and Webassessor:

It doesn’t always matter if you don’t get an email from Webassessor. To verify that your link has been sent, please log in to Webassessor. If you can log in and are able to book the exam, then everything is set.

Regarding Email Usage:

If you’re not working or are freelancing, you can use your personal email ID for learning purposes. But if you’re working with a partner/company, I recommend using your official email ID so you can get the voucher for free. Otherwise, you will need to pay for the voucher yourself.