Platform, device version and operating system
PC/Steam
Screenshot or image
If you are on a console simply take a photo using another device. A video is preferred. Try uploading to YouTube Privately.
What you were expecting to happen, and what actually happened
Getting 30 diamonds, but actually got only 25
How often does this happen? When did it begin happening?
once
Hello, the rewards for Live Events (Raid Boss/Invasions) differ slightly each week. Assuming you just collected for portal 7 (which says 25 diamonds) and you go 25 diamonds, then this is not a bug 
30 gems
25 diamonds lol
It seems Kafka has gotten to your ticket and sorted everything out! Cheers.
p.s Didn’t notice that you had collected all your portal rewards at once, sorry.
