I know, I also hate buying a fragrance without trying it first and would love to be able to sample QVC fragrances. But I believe that they should only send those things out by request.
Many of us have serious allergies or reactions to things like that. Sometimes I get those mailers and I can't read the magazine they came in because it triggers a reaction in me. I'm allergic to lavender. If QVC sent me a package with Tova in it and the lavender caused me to have an asthma attack, I'd be really mad. If the Tova scent got on something I purchased, like shoes or a household item I could not wash, I would be unable to wear or use the item at all. I'd have to send it back and I would make them pay the return shipping AND be super mad and maybe not order anything else from them if I couldn't trust that future shipment would not trigger such a reaction.
You have to be careful when you send people things they did not request, especially chemicals and fragrances that can trigger poor health reactions.
I would prefer it if QVC sold a sampler of all the fragrances they sell. Sephora has similar kits where you get a tester size bottle of various fragrances and a coupon good toward X number of dollars off your next fragrance purchase.