I have received the frozen airdrop. How can I sell these coins now? Do I need to sign up on their beta exchange platform and do what?
There's no specified instructions...
You can't do anything with them at the moment, only wait. And yeah, in order to unlock them you will have to trade on their exchange, and that means going through KYC and sending your own ETH/BTC on that exchange.
I suggest you that you forget about KICK tokens, as by the time they are released, those 888,888 KICK you got will be worthless. Not worth it to give them your info for bunch of worthless shitcoins, as that's what KICK tokens are, don't fall for their marketing campaign.
One good thing about all this is the fact that their campaign is not working as good as they expected, KICK token price went down 90% in a couple of weeks. With tendency to go down even more. As I said, nothing but a pump&dump shitcoin.
Therefore, users will have to make trades even if they don't need.
For example I will have to deposit BTC, convert it to ETH then convert ETH to BTC and withdraw BTC to become eligible for the reward.
That's the worst part, people will deposit their hard earn money on that untrustworthy exchange in order to get those airdropped tokens.
KICK smart contract was exploited back in 2018, when 40 people lost 70 million KICK worth at the time 7.7 million USD. People affected got their tokens back after few months, but by that time price plummeted by 70%, creating huge losses. Here is an article about the whole incident
https://www.ccn.com/another-ico-hacked-kickico-loses-8-million-after-smart-contract-breach/