I think Pearl Abyss should add the amount of Restoration Scroll OR SILVERS at the ENHANCE ACCESORIES UI that we need to restore the "failed enhancement" of the accesories right BEFORE we upgrade it, NOT AFTER we failed to enhance it. 

I mean its OBVIOUS knowing the amount of restoration scroll that we can buy with BLACK PEARL have a max weekly purchase. 

Lol they make it this way so you spend silver if you fail.

I spend over one mil silver just try to fix gold and purple level 20 items.

If you fix them with restoration scrolls before items brake then there will be no need in spending silver.

However this is good itea just post it under the ideas for game , Suggestions topic so it would not lost.