I got an order on fiverr and I delivered everything in under 10 minutes. The customer says that the files don't work but I'm 100% they do! I even helped him and gave detailed instructions. He asked me to cancel the order or he'd leave a negative review. I don't want to cancel it because the files do work and he just wants to get them for free. How could I prevent this from happening?
Thanks!
Thanks!
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