How do I get my refund from United Flight?

How do I get my refund from United Flight? How do I get my refund from United Flight? How do I get my refund from United Flight? How do I get my refund from United Flight?   Website URL: https://community.lumivero.com/s/question/0D5Jw00000dNecBKAS/uaguidehow-do-i-get-my-refund-from-united-flight