A period of haggling ensued.
Both sides had strong needs and limited resources at their disposal. There was no way thy were willing to sacrifice a fortune only to receive a pittance.
The problem that both sides faced was the difficulty of appraising the value of the goods on barter.
What was the worth of a kilogram of weapon-grade superdimensional matter?
A billion MTA credits? A trillion MTA credits?
Nobody knew.
Nobody ever paid money to acquire superdimensional matter. They only ever paid in goods, in knowledge and in costly favors.
Those concessions were also difficult to price because their value fluctuated greatly depending on the changes in the environment, the economic conditions of human space and how well humans fared in the Red War.