Pubg, when you bring back upgrade guns from gilts that have sound effects and cost more to upgrade, can you please add the discount for materials and paint needed to upgrade them when they are also returned in gilts in that 20-30days. Exact discount like they had on release?

I assume, not only me but everyone with skins that have sound effects would like to upgrade their guns by not spending much more materials and paint, but the discount is only possible when gun are released. So it would be really nice to get chance to upgrade our guns for less when they are returned for short period of time, after that they go again back to their normal price. I have 3 guns with sound effects on lvl 5 so i would like to spend little less when you return it so i could save for something else. And also lvl 7 costs 2 materials more but i don’t get anything new and special, even the loot crate don’t have sound effect like some other guns have, that are cheaper. Thank you in advance