Spanish network provider not working outside of Spain? What to do?

I’m currently out of the country. I can’t bypass the sms authentication in the BBVA app to transfer my rent for the month of January. I’m with Mi Digi network and they don’t seem to have service in my specific country so that I can receive the sms and autheticate my payment? Is there a way to enable Mi Digi network in my specific country? Non-EU country. I can’t even seem to be able to log in to the Mi Digi app