Loose evidence is not nothing, but a washout either side is the only reason to trust your own take.

Cold storage, light protection, date on the vial. Boring, removes half the variables.

Reconstitution arithmetic is only half the problem. The other half is what was in the vial. How long have you been on electrolyte powder?

What do you do about the fee? Do you just pay it?

Half of what people describe as tolerance is a change in the underlying condition, and the two need different answers.