I didn't even know until today, that they've cancelled the giveaway. I've only seen the rebranding of their site.
Extremely shady move.

I don't know if it was similar for your account that so many tasks were pending, that was very strange and just looking like they've planned this scam from the beginning. I have no proof for this but it's really looking like a planned scam strategy.
If they don't pay, the reputation of KuCoin exchange will be damaged for sure.
It is an extremely well-planned scam from the start. They have planned everything in the beginning not to pay users, and took all the steps successfully.
Even taking their OWN bot accounts to top 500 is proven with tons of accounts being moved out while registrations were closed because of a phone verification problem.
So, '' tons of users registered and got to top 500 '' while registrations were locked. So well-planned.