If you made change everyone should be affect in the same way. People have been playing for a month, some have 5 t5, some have 15 t5, just now some were unfairly disadvantage. Really sad to see a generic response without any compensation.
Ok, will do later on when I can I just check with some guildmates, and it seems to be when we are doing Arena, you see the progress increase, then you check the quest screen, progress has not been updated. If you quit the game and open the quest screen, the amounts are updated now.