From time to time, price tier changes take place on Apple and Google Play that can affect the prices you have specified for your in-app purchases and subscriptions.
Apple will usually update its Pricing Matrix in Rights and Pricing in My Apps on iTunes Connect. They will also update the iOS Paid Applications and Mac OS X Paid Applications agreements, which will be available in Agreements, Tax, and Banking.
If you wish to enquire whether a price change has affected your chosen price tiers, or if you have any other questions or queries, feel free to contact the YUDU technical support team and we will be happy to help.