Thank you for sharing. Did you use unlimited skills or only dumb enemy?
use both of them. if i remember correctly, i won't use cheat on tuesday (that is their ban schedule), also only using cheat in 00.00 - 06.00 JST.
Never use cheat in any campaign that can record your personal time (high chance to get banned)
Back then I didn't link my account when using cheat (to keep my id hidden from track). I linked it only one day before next maintenance.
Also this is totally unrelated but i found the way to make gacha often release SS tier, but because the update on new banner keep coming that i cannot catch up with (and i feel that this is totally offline game) I decided to quit. I can enjoy the game just because i'm fluent to japanese, else nothing much to say about the game. just my opinion.
Please just read it as reference (it is not absolutely right anyway)