I seem to be able to earn farmville coins but how do I earn farmville cash?

You get Farmville CASH by clicking on the "ADD COINS and CASH" button just below the separate icons for Coins and Cash in the top left of the screen. Farmville Cash costs REAL LIFE MONEY (you need a credit/debit card or a phone that will accept premium rate SMS messages - depending on your country). There are other options to gain CITY CASH.

Check the EARN CITY CASH tab just before you enter the actual "game window" (pressing PLAY).

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