Hiya! I typically recommend waiting up to 30 minutes to receive your store purchase. You can also try relogging (logging out and back in). If you still haven't received your rank by that point, you will need to submit a donation ticket by following the instructions in this thread: Important - Donation Issues | Minecraft Central | #1 Minecraft Server (mccentral.org). Hope this helps! Have a great rest of your day/night.
