Hi guys, just wanting some advice… a customer ordered a print for £57.49 18x24. The image was printed at 5400x7200 at 300DPI. The customer put in a complaint saying the poster was too pixelated and bad quality I was happy to offer a replacement and purchased a better upscaler, after altering the quality and they asked me to send the image in a PDF to double check it before I sent the replacement. I sent a screenshot of the image as you can’t attach PDF’s on Etsy chats and they’ve said they’re still not happy and want a refund and to send the poster back. What would you do in this situation? I’ve stated on my shops I don’t accept refunds as all posters are printed on demand, but am aware this is a complaint about quality so might be different? Thanks for your advice