Or do you have to return them after a specific amount of days? I know with the free games that say "free" they are free but after 30 days you have to return them or buy them if you want to keep them.Is something silar like that the same for the "free kindle books" on amazon? No I'm not talking about "amazon prime" that I know you pay to sign up for and burrow for free but I'm just talking about the regular free kindle books on amazon that you don't buy through prime.
См. статью: Are the free kindle books from amazon yours to keep or do?