<human>: To make a long story as short as possible... I did some artwork for a friend's wedding. Normally I charge a few hundred, but she's a friend so I did it for fifty bucks. She sent me a check. I went to the bank with it. Received a notice in the mail that the check bounced. I not only got nothing from the check, but they charged me twenty bucks for a "fee."

I told my friend what happened and she apologized and said their bills depleted their bank account. Meanwhile they're on a massive trip to Disney World that they are paying for. She sent a new check.

For fifty bucks. She didn't cover the returned check fee. I have not cashed the check yet and just got it yesterday.

We don't have much money. Twenty bucks is a lot to us. What should I do? How should I ask for the twenty bucks, without losing her as a friend? I don't value the money over our friendship but I'm worried I'm going to resent her forever if I don't AT LEAST say something. She was a very difficult client and I worked my butt off on her artwork.
   
Note that we're online friends; I need to email her. We don't talk on the phone or in person.

Condense the text into a few key points
<bot>: Friend basically owes me money for work I did for her and I don't know how to ask her for it as I'm autistic and don't understand social crap half the time.