Well they do look like leaves, but I see something just poking up under the brown edged growth
in the center, that actually does look like the beginning of a scape. I am really surprised that ETG is willing to replace the Samba this soon. I would have thought they would want you to wait at least another month. That's excellent customer service. Some people use bottom heat to encourage bulbs to break dormancy. Put the vase on top of a warm appliance or on a heating pad at very low setting. I've never tried this, and my fear is that you are just encouraging rot. But someone else on this forum might have experience with this.