Hi there, I work in payments here and this is very common. The logic behind charging payments is a literal drop down option to charging “actual” verses “percentage” unit amount. I’ve made this mistake multiple times and although very unacceptable for some people, it’s unfortunately common and part of human error, there’s hundreds, to thousands of merchant accounts each with their own unique pricing. Because of this, it must be eyeballed.

Not saying they’re not intentionally screwing you, but just that it happens, and it could be reversed.