Set default payments in USD regardless of currency

[mysantropia]

Hello

I have a card in Colombian pesos, I bought an item on Ebay and I want to pay in US dollars.

I am looking for the option to set by default that my payments are made only in US dollars, but I can't find it. I have looked at each of the options that the account has but this does not appear. Is it possible or not?

Thank you.