For those who are seeing different pricing in the Store when trying to purchase Dragon Valley, please note that EA is aware of the issue, and has suggested using the Simpoint Bundle Page to purchase the world.
We recognize there is a bug with the incorrect currency displaying on the Dragon Valley world page for those in the UK. We will be releasing a fix later today. In the meantime, you can still purchase the Dragon Valley bundles from our Buy SimPoint page and you will see the correct currency and pricing.
Thank you!