Ok, so I was going over the rules for the GUI Game contest again with Vitos (person who runs the contest), and heres what he said:
"Submissions must be complete no later than midnight on Sunday, November 20th, Eastern Time.
The prize for being selected is 5000 robux. If the user does not have Builder's Club, they have one month to purchase it in order to claim their prize. Should the winner be incapable of recieving the prize after 1 month, it will be awarded to the next runner up capable of accepting it.
In addition to an appropriate place submission, users must also belong to the group GUI Games in order to be considered. They may join at any time prior to submitting an entry.
Early submissions may be updated throughout the competition. Places will not be conclusively judged until the 21st.
To ensure fairness, I will not be the sole judge. While the final decision rests with me, I will be taking into account the opinions of two or more other judges, yet to be named."
Thanks Vitos for the information for the contest! If you have anymore questions feel free to message Vitos on Roblox!