HELP!!! How to give players tools via GUI if they have a game pass? [closed]

I have looked absolutely EVERYWHERE! I can't find NOTHING HELPFUL! I just want to make it so that when a player opens up my my shop, there is a button they can click to give them an item if they have the game pass. it really doesn't matter if the button is there and it is invisible or its there and rejects player because he doesn't have game pass. (Btw, it would be GREAT if it could have a GUI pop-up when they don't have it that would prompt purchase of it.) PLEASE ANSWER SOON! My game is a really good game, and I think its going to be somewhat popular. But I just can't get that to work. By the way, its called "Call of Duty Zombies" Has an epic map that I didn't build xD NVM i figured it out xD But I did take forever to get it. the code i got from the wiki wasnt working. Its funny because i searched for it in the search box here and didnt find it then i typed the same thing in google, just said, "scripting helpers" before it and it was the FIRST link. i guess they need to work on their search box.