I do not know about you guys but I would do plat offers, and then I would buy the '7 days xp elix' (cost 60 of plat) and if you can not get plat, buy xp 30m ( IN AUC), do all the missions without collecting them, and when you have them All complete open the xp of 30m and Complete them ( with xp 30m elix), will have them as 25m more, use it in graveyard or elite underhul. I hope it works for you guys!