As stated in the title, I conversed with the buyer beforehand, asked them to place all their requirements in the order requirements. Everything was spot-on and within my abilities. Within a day, though, the buyer kept adding new ideas and suggestions while changing old ones every few days to the point that they were still asking for changes in the final quarter. Finally, they started trying to add things that I don't provide, so I am in the process of canceling the order.
Is there any way to prevent it from affecting my stats? I feel like I did everything I was supposed to do to be sure the buyer was inside the scope of what I offer, but the buyer still decided to change their requirements and go beyond what I offer after the order was placed.