We could easily manually lower the price, however raising it was very difficult and required managerial approval.
One thing I felt was anti-competitive was price matching Costco at the "each." This would result in absurd 2-day shipping prices that could not possibly be profitable. e.g Costco sells a 24 pack of soap for $1 per soap bar. We would price match the individual soap bar such that it was a $1 delivered to the customer's door.
France caught on to this "pro" customer behaviour and is implementing laws requiring minimum shipping charges so that E-commerce platforms can't use "free" shipping in a predatory pricing manner.