Modifying approved asset before publishing

I’ve made three rock packs, published the first two as paid, and just before publishing the 3rd one I have decided to make it free. The problem is that it is approved on fab.com, but not published yet - I want to make it free before publishing. Can I do that on fab? FYI these are the existing assets:

I’ve decided eventually to make it free, here is the link to the pack in question, have fun! It’s completely free for all license tiers.