I know this is none of Axiom's fault, but it all creates frustration and eats into the 30-days trail.
You are assuming the 30d trial begins from the day you bought the speakers. I would expect Axiom would allow 30d from when they were received. That information is easily provided to Axiom with a tracking slip once the products arrive.
I can't speak for Axiom, but i would be surprised, and personally disappointed, if they didn't honour a 30d trial starting from the day a customer actually received their products.