[happymellon]

What you did was take my original comment and try to make it more verbose.

Your "well actually" was argumentative and added nothing.

The solution is to either remove the expensive sources or change how we do the purchasing. Nothing you said changed that.

[tialaramex]

Your original post falsely claims it's the "most expensive rate". It's not, the most expensive rate is higher, often much higher.

What is paid is the clearing rate and I explained why. Fantasies about "changing how we do the purchasing" won't change the facts either.