I've dealt with a very difficult customer as well. Long story short, I measure my items from armpit to armpit by the seams & make them very straight. I also measure them when I'm finished. She got her CUSTOMIZED order for her kids complete with 4 hours of my work and lots of convo'ing back and forth to her for $36. She sent me a picture WITH A RULER TO THE SHIRT and the ruler was CROOKED and I should post it for you to see that she sent the picture with the ruler at an angle on the shirt and told me the design was a little off and it was crooked and she wanted a new shirt. I kindly emailed her, knowing from our prior convo's that she was very difficult as I was trying to nail the design down with her, and let her know that I'd gladly refund her money as I did not want to disappoint her & maybe she could find someone else to do it for her. She requested another shirt still & I did send her another one as it was cheaper to make a new shirt than it was to refund her the money (as there were 2 shirts involved for the $36). She probably got the new shirt by yesterday. I am NOT leaving feedback until she does as I was very nice & very giving. I just didn't want negative feedback and I'm trying to build a store with a good reputation. If I were you- i'd offer the money back and let her know that you do not want to disappoint her any further. Seriously, some of the situations that occur here aren't worth the headache for the money and aren't worth having negative feedback. I know I provide a quality product and I put a lot into each design and into pressing each one. I am very detailed and if I had truly messed it up, I would've replaced it BEFORE I sent it out. We are also a handmade group, not an assembly line and I think that slips the mind at times. Anyway, good luck. I understand the stress that you are probably under to not receive any negative feedback. All of my customers have raved about their items from me until her. Some people are very difficult and some people you absolutely cannot please. The stress isn't worth the $20. Maybe suggest she find someone local that can do a rush order for her? Sorry for you and these situations. They get made into such a bigger deal than they need to and make it harder on the small business.