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Old Dec 29, 2019, 6:41 pm
  #2  
Often1
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Join Date: Aug 2010
Location: DCA
Programs: UA US CO AA DL FL
Posts: 50,262
Don't waste a second on worrying about "what gives?"

Initiate a partial chargeback for the $20, noting that the fee was $30, that UA acknowledged that the fee was charged in error and then only processed a refund for $10.

UA won't bother to research the issue and, if it did, would acknowledge fault. You will have a temporary credit in short order and it will become permanent when the time for a response passes.

Even at minimum wage, it's not worth the time you will spend on the phone and even then you will never have a good answer as to what happened. People make mistakes.
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