Can't access all puzzles – Side Word Adventure - Word association game Review

I love this game but I can't play any more puzzle sets. I just finished the space set, which only had one puzzle, where the other ones had about four. When it was done a message came up telling me that I completed the game but my list shows that I have four more available but I can't access them. I spent $4.99 for a hint package literally less than ten minutes before this happened. I have spent over $15 for hints in total. I'm mad and feel ripped off! I really want to play the other levels. How can I access them? If not, I think I should be reimbursed. Thank you.
Review by Toysandtupperware on Side Word Adventure - Word association game.