iPhone bill has been lost and I want a international bill

The invoice information for retail and online stores is at:

Viewing & Changing Orders - Shopping Help - Apple

View or Print Invoice

"Once an item is shipped or picked up, Apple will create an invoice for your order. To view or print your invoice, go to your Order Listing page and select an item to go to the order details. Then, select View Invoice at the top of your order details page to access your invoice.

If you need help viewing or printing your invoice, speak with an Apple Specialist."

For a physical Apple Store purchase you can try contacting the store where you purchased the item and see if they still have a record of the purchase.

I don't know what you mean by an international bill. Apple does not do international shipments.