A: The only way to get gold is by getting a gold star in each level. You have to complete the levels before you can move on to the next one.
Q: How do I join a clan?
A: To join a clan, go into your phone and type *#*#737842393#*#*. This will open up your CLAN INFO screen which contains all of your friends and alts (if any). If you find someone that suits, send them an invite and they’ll be added to the list right away.