I am developing an app which consists of digital product, that is cards. Inorder to buy a card the users must make a payment. I have used 3rd party payment gateway and havent used in app purchase does apple take 30% for my app.

I want to upload paid apps in app store so i was entering the tax and bank info, It asked me for the bank details my account number as my account number is 10 digit long i am getting this validation. Should i enter my debit card number or should i add 6 zeros that is 'oooooo' prior to account number

Claim of Tax Treaty Benefits (If Applicable). (For chapter 3 purposes only) These are the check boxes i have to check i dont understand which one to go with. Although the United Arab Emirates has treaties with many countries, the US is not one of them. How to fill this form 1.The beneficial owner is a resident of United Arab Emirates within the meaning of the income tax treaty between United States and that country or region. 2.The beneficial owner derives the item (or items) of income for which the treaty benefits are claimed, and, if applicable, meets the requirements of the treaty provision dealing with limitation on benefits. The following are types of limitation on benefits provisions that may be included in an applicable tax treaty (check only one; see instructions) The beneficial owner is claiming treaty benefits for dividends received from a foreign corporation or interest from a U.S. trade or business of a foreign corporation and meets qualified resident status (see instructions) Income from the sale of applications Therse all are check boxs. Please help me out with this