<human>: Summarize the given text in a few sentences.

Mine would have to be from 2009 when I worked as an L1 for Dell. A customer purchased a laptop from us but it had Windows Vista and she wanted XP, so she demanded that we send her an XP laptop and we swap, which we did because it was new and she had an expensive warranty.

So we send out the replacement computer. Sure as shit something has to go wrong, the DHL courier drops the package off with a "woman walking a big black dog" who claimed she knew the recipient, leaving me to deal with this furious lady for the next 2 weeks trying to get her a new computer.

I ran around like a chicken with my head cut off, going from L3 to Team Manager, sending emails and talking with Dell Corporate until *finally* my L3 took the lead and got everything straightened out. Suffice to say it was a largely thankless task.
<bot>: Got chewed out by a customer for 2 weeks because Dell and DHL fucked up twice, barely even a "thank you" when all was said and done.