I am a UK citizen looking to apply for a B2 visa from Latin America as I'm currently volunteering throughout the Americas (so looking to enter for over 90 days), and hope to save on the costs of travel back to the UK.

I have read that applying from outside your home country can be more challenging but, if the application requirements are met, is there any downside to trying? Should the application be denied is there anything to prevent someone from simply submitting a fresh application from their country of residence?

Many thanks for any responses!