Oh, good question! Here in this thread I'm communicating with you with my English npub 
nostr:npub187c8yedmqmss7fxtzqya4vphfkazl04lvrz7cp5xghhwzjduc4rqkcwd0t

However, I am using a different npub on flare indeed!!! The Portuguese one:   
nostr:npub1vwcy6na4rcx6r43fqyxkhzzdvqufctnx06ywvrnajmq9p3mu27yqxy04ch

Since made 2 payments, would it be possible that I get 2GB for each npub instead of 4GB in the Portuguese one?