I accepted a task during the happy hour and I am 200% sure I have completed it.
Buy alas no rewards.... I was supposed to get 397 gems and even after 5 days of completing it is still in the 'In Progress' section.

The task was of Lord's mobile and it asked me to hit a level 2 monster and I have done that about 5 times....The reason why I know I have done it 5 times is because it legitimately gave me an achievement that said hit a level 2 monster 5 times.

Please help😓🤗