How do you make a "need more cash" gamepass?

some time players run out of cash and need some more.How do i make lihe a developer purchase that when they press the button they spend robux and get more cash? and can the processes repeat again foe an exaple:I buy the 10 cash product and then i want buy the 10 cash product again...

GamePasses = 1 time buy

DeveloperProducts = multiple time buys

With DevProducts the user can buy them multiple times. but with game passes can only be bought once.

Problem is DevProducts require more code. and you also need to promote it on your game because roblox doesnt promote devProducts on the games page unlike it does with the Game Passes.

I suggest you follow this tutorial:

http://wiki.roblox.com/index.php?title=Developer_Products_%E2%80%93_In-Game_Purchases