"Fresh iCloud" means the ones never reinstalled / erased / updated ! if u got macbook asking passcode (see picture) with name of user, dont update or else ... just do pay and contact me, it can be unlocked permanently ... Unlock process delay depends between INSTANT to 4 days .
what u need :
1. 2nd working Mac updated to late Big Sur
2. Type C cable
3. Install "anydesk" on the working Mac
4. Good internet