Its always a flat fee, 20%. Although smallet wallets might not get same attention for obvious reasons like strained resources. Although we give all wallets a shot and usually for smaller wallets do it just out of being nice without a fee.
We also dont follow all sub threads to respond to them immediately, if you wish quicker response try email
keychainx@protonmail.com or telegram @keyxhainx
/KX
From the looks of it, it seems your fee is cheaper although I have not checked other outlets to see how much they charge but I presume they would be more higher compared to what task is involved in recovering the wallet. However, I asked a question
here about my situation and I am yet to hear from you..I will like to get a feedback so I can know my stand on this situation as I have been trying to see how I can recover my assets in that wallet as I long lost the keys to the wallet. Can you please attend to me.