Upgrades?

I was billed twice for the upgrade but I only upgraded once when I left from EWR to FLL, looking at my account I was charged again today but when I re

I was billed twice for the upgrade but I only upgraded once when I left from EWR to FLL, looking at my account I was charged again today but when I returned on Saturday, I had my normal seat.

or:I was billed twice for the upgrade but I only upgraded once when I left from EWR to FLL, looking at my account I was charged again today but when I returned on Saturday, I had my normal seat.

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