Are you only allow one May the 4th Crystal Bonus purchase event? It appears that once you have snag one up then you aren't allowed another one ever... @EA_Jesse can you have someone address this question?
"May the 4th celebration – special one-time purchases are available for each type of Crystals pack that gives 25% more Crystals at the same price as the other packs."
Replies
https://forums.galaxy-of-heroes.starwars.ea.com/discussion/34811/community-update-4-29-2016
"May the 4th celebration – special one-time purchases are available for each type of Crystals pack that gives 25% more Crystals at the same price as the other packs."