its not worth the risk tbh, id rather deposit a small amount at a licensed place than chase some phantom free spins from an offshore site, the hassle isnt worth the potential few kroner
i check my spam folder sometimes like markus said, found a couple offers that way, they were all for slots i'd never heard of and the sites looked like they were made in 2005. didn't even bother clicking
yeah that's the whole game. they give you just enough to make you think you got something, then you're stuck. i fell for that once too. ended up depositing way more than my little 'win' trying to clear the playthrough. never again. it's better to just ignore those mobile casino no deposit free spins offers.