You can work with companies like TheCurrencyCloud or Xendpay, they can do invoice processing for a lot many countries.
Online Payments: What is the most effective way for a startup to accept international bank transfers?
Why is it difficult for merchants outside the U.S./EU to support international payments?1 ansIs there a company that lets you accept bank transfers globally or across several countries?1 ansWhat alternatives exist to 2Checkout for Pakistani ecommerce businesses facing high cross-border fees?1 ansDo U.S. companies use web-based electronic checks, and which payment gateways support them?1 ans