Hey there,
I'd recommend making a support ticket here: https://manacube.com/support. Try relogging, and it might come back after the reboot. If it still isn't there, then making a support ticket is the fastest way to get it resolved. Sorry for the late response @TristanDG!
Best,
WingsOfFyre
Are you sure you purchased it on the correct server? We have 2 separate Skyblock servers, are you able to confirm you bought it on the gamemode you play? (Oasis or Aztec).
you very much should have blanked out your real name and adress you dont know whos on this site but if /titles does not work then submit a ticket here https://manacube.com/support/