If today, the pen coy advertise they use 14 coil, but in the end user found out it is diff rev becos onli 10 coil. The coy is at fault for misleading. Hw can coy claim things that they do not fulfilled or inform customer abt the change.
Tis might NT cause the customer anything, pen can write, throw on floor still can write.
But it is dishonest for coy to claim things they did not, n no do their part to highlight properly.
Just to pacify a troublesome customer like you, they must print big big rev.X on top of their other marketing points on the package? You willing to pay them the costs?
Just because of 1 customer, they must change the whole printing process? You absorb the costs so that you can see big big rev. X on the package?