That return window is probably closed so you're stuck with it, but check if you paid with a card that has purchase protection, some of those cover buyer's remorse for a few months. If that fails, throw it on Facebook Marketplace for like 250 and just eat the loss, they move pretty fast there. Lesson learned though, never drop that kind of cash on gear for a gig until you've tested it on a cheap rental first.

Wait, where did you hide the mesh panel, on the actual bottom plate or did you cut into the case floor under the drive cage?

Hated grounding straps till one saved my ass, now I check em first.