It allows you to reserve 1 seat for

the Architect Masterclass Fundamental (Lifetime license) program

You can pay the Reservation Fee due to the limited number of seats if you or the company you work for needs some more time to process the full payment. 

This fee is fully refundable once you purchase the full version of the program.

If you cancel your purchase you can also ask for a refund. 

It's guaranteed. No questions asked.