Then, just talk to NVC that your brother was divorced, so his ex-wife is not qualified for immigration as his derivative. Then, ask NVC to remove her name from the list. Do not file DS 260 and not pay any fee for his ex-wife.
Then, just talk to NVC that your brother was divorced, so his ex-wife is not qualified for immigration as his derivative. Then, ask NVC to remove her name from the list. Do not file DS 260 and not pay any fee for his ex-wife.