I just complete the Champion Challenge 5/5 where I had to upgrade Ghostborn as a spirit champion to level 6.Was the last task and the price was the sacred shard.I finish the challenge,although it shows challenge complete I still  receive no sacred shard.I contact Plarium several times but as usual they don't give a sh.it on their customers and I had no answer

I am thinking to escalate this to google play but I'm hoping this issue will be solve by this  guys from Plarium