Vouchers are the new Currency in San Monsano. Like coins, they are not sendible and are a limited resource when you first start the update.
You can get Vouchers from the new Gold-Prospector’s Collection.
Trade Gems in the Trading Post
Collect 50 Vouchers from the Trading House every 3 hours. You can have 2 Trading houses.
Collect from the Dam every 24 hours once built.
New Shop decorations will also help with San Monsano items and Vouchers if you have the extra Bucks to buy them.
Future updates will also give Vouchers and rewards.