What would you do if you got Filament that wasn't vacuum sealed or dated?

I ordered some filament online, and I just got it yesterday. Normally when I get filament it is vacuum sealed in plastic, or has some sort of packaging date on it. This order had neither. I'm wondering what you would do? Would you send it back, request a refund, or what? I'm worried because I don't know if it's been sitting in a humid warehouse for 3 years, or if it was made last week and kept in a room with the right humidity. I ordered 3 rolls. I have thought about trying it out, but then I might not be able to get a refund. What would you do?

Send it back or get a refund. You don't know what will happen to your printer or your object when you use it.
And once, you used it. You can not send it back.

Why didn't you ask the supplier? Or maybe, the customs checked it out for safety.

I always buy to 3d2print.net, they ship using DHL premium and get my package always secured.