Following new regulations in Taiwan, Apple last month began offering those living in the country a seven-day period in which they could “return” any purchases from the App Store. As discovered by IDG News, Apple has now formalized that policy and has updated their terms and conditions for the Mac App Store, App Store and iBookstore.
You may cancel your purchase within seven (7) days from the date of delivery and iTunes will reimburse you for the amount paid, provided you inform iTunes that you have deleted all copies of the product. Upon cancellation you will no longer be licensed to use the product. This right cannot be waived.
Whilst Apple has on occasion refunded purchases when customers contact support, this move allows any customer in Taiwan to get a reimbursement for any app and without any grounds within the first seven days. Some may recall with the recent uproar over the new Final Cut Pro X, Apple actually publicly offered anyone who had purchased FCP X a refund but they made sure to note that it was only a "one time exception". However as the above snippet from the terms and conditions note, the process for those in Taiwan is still fairly tedious with consumers having to email the iTunes support team and manually delete the apps.