I received below as in email, as soon as I requested. also the download link is not yet enabled in my PDN.
Dear Ramu Valivarthi ,
Thank you for submitting a request for Pega software. We are currently processing your request. If you have any questions, please contact UserSupportServices@pega.com with reference id PE-<moderator removed ID>
I have checked the status of your request <moderator removed ID>, it is currently under Pending-AEReview and assigned to your company's Account Executive. Once it gets approved, you will receive an automated email to download the software!