2016-05-11, 08:28 PM
I just created an upgrade page for my board and was wondering how I can make it so you have to be upgraded to the first membership before buying the second one, like shown in the picture below. Any help would be much appreciated!
![[Image: A1VbeqK.png]](https://camo.mybb.com/704f177d359e9cfc3558003ae14cce15a1176b58/687474703a2f2f692e696d6775722e636f6d2f4131566265714b2e706e67)