I put $5000 into Moomoo to try to buy some warrants which are...

I put $5000 into Moomoo to try to buy some warrants which are not listed on Selfwealth (NVAWW), but decided against it and withdrew the $5k. They called me immediately, offering $30 (stock credit) to cancel the withdrawal.

Pretty weird - on the verge of suspicious. They also ask people to opt in for high interest, but I'm not clear on the catch, if there's some significant risk that they're doing with the money.

However, they gave me $20 for passing the options exam level 1. Withdrew already.

They gave me some bonus US stocks (for depositing cash for 1 month), but like $3-20 parcels. $3.5 minus $1 fee to sell... $9 minus $1 fee to sell...