These are the emails I received when I bought GSC:
email #1----------------------------------------------------------------
Dear Corrado,
Thank you for your purchase of:
(1) - Game Stock Car - Full Version
Your license key is XXX-XXX-XXX-XXXX
Start Game Stock Car - , click "I have a serial Number", online field, and Input this number to activate your copy.
If you install Game Stock Car - in a different enviroment, you will need to use your Serial Number to activate the copy again. The Serial Number you purchased is valid for three activations in total.
Should you have any questions please contact us at:
support@reizastudios.com
Sincerely,
Reiza Studios Ltda.
END EMail 1-------------------------------------------------------
Email #2----------------------------------------------------------------
Thank you for your recent purchase using the Plimus.com Online Store.
Plimus is under contract with Reiza Studios Ltda. to process orders and collect payments.
If you have any content-related or technical questions about the product, only the manufacturer can provide proper support, please contact
Name: Reiza Studios Ltda.
Email:
support@reizastudios.com
If you contact the seller, please be patient and allow them 2 business days to respond.
If after two business days the issue remains unresolved, Plimus will be happy to assist you directly. To make a customer service inquiry regarding this purchase please visit:
http://www.plimus.com/jsp/escalate_issue.jsp?ref=60492414
We have received and processed your order.
Use the link below to request product support, see your order information online, retrieve your receipt, obtain an official invoice, request refund or to have your product/registration keys resent (if applicable), do not reply to this email as your reply will go unread:
https://shoppers.plimus.com/jsp/order_locator_info.jsp?refId=8BA375C16668D84E&acd=B9E7F3CF4EA8025B
END Email #2----------------------------------------------------------------
There is no direct download link, but I did see the Plimus link at the very end so I made a request through that one for a download link.
EDIT: when I submitted my request at the Plimus servers, I got this:
This product is no longer available for download, this may be due to the maximum number of allowed attempts exceeded or the allotted time.
Please contact the manufacturer of the product for support.