It can happen. Sometimes
ecig vendors are out of something for many weeks, especially around Chinese holidays (just wait for Chinese New Year and then you will see a lot of places out of stock). Check Bloogplanet Maxxfusion and Halogcig G6 supplies. Bloog may have the same juices and cartos, dunno about Halo. I get most of my KR808D-1 stuff at Vapor4Life.com but their juices/prefills are different.