Bonus for Completing All Requests

I don't remember when it started, but the bonus I get for merging and delivering all requested items. Until now, I used to receive items like green circles to level up the generator... but lately, it seems to be items like pink circles or small parts 💧 Thanks to that, my storage is getting clogged with useless stuff, it's the worst... 💧 I want to throw them away or sell them, but... since they're for the generator, if I think about collecting them for level-ups, I can't easily sell or discard them (￣▽￣;) You're not giving us such a meager bonus with the shallow thought of 'Oh, if your storage is full, just pay to get more space,' are you?