Dear Plarium, as a TOTAL whale in your game I got extremely disappointed when trying to unlock the UNunlocable hero via the new Mission system I faced the following bug!

In mission 305 (Artifact) I have to upgrade 5 times MAX glyphs. When I was sitting on 3/5 of the achievement, I did upgraded one after the other an item with 2xMAX stats and received only 1 achievement point so I was sitting on 4/5. It was never mentioned that this should be a different item that we are maxing out. Also a lot of points were not taken from level 5 glyphs that I maxed out. 

Glyphs are EXTREMELY hard to come by especially 5+ and I wasted all of them on this RIDICULOUS achievement, so PLEASE give me the 1 achievement point that I have earned but was not counted!