If you have opted for check payment, you need to accumulate about $100 in royalties before a check is issued. THEN you also have the costs involved in trying to cash a U.S. check in your country.
If I were you, I'd check out Payoneer. There is an annual fee, but it may be worth it to avoid all this hassle. What Payoneer does is issue you a credit/debit card that has, on the U.S. side, the equivalent of a U.S. bank account number, and Amazon will pay into that.
See the many posts on Payoneer (in this forum) and see what you think.