So, I came across an invite link to a special campaign on Binance; existing Binance Pay users get free BUSD (limited supply) and if they invite a friend to complete KYC they get another box containing between 0.01 and 3 BUSD (also limited supply) (I got 0.1 myself)
"But Tšuhna, what's Binance?" Someone might ask, well, I'll tell you, Binance is a cryptocurrency exchange, apparently the largest in the World, they have other services in addition to their exchange as well such as a free Visa debit card you can use to spend your crypto, there's more but honestly I am not familiar with the rest, I mostly use Binance to spend my crypto, which Binance has made rather easier than any other exchange I know as they support multiple networks.
Anyway, as said there's a campaign going on for another three days.
here's my link if the QR-code doesn't work

What are you waiting for? Go claim free BUSD while they are still available!
(edit: fixed the range of rewards in the boxes)