If they're on different IP's you could use the "I got hacked and appeal" but the chance will remain very slim to get it unbanned. Out of 12 accounts I only got 2 unbanned with this method. It's still a very low chance but probably the only one.
I agree, private scripts are really the way to go. Public scripts have the same pattern as hundreds of users use it. A private script is limited, some of them even last till 99 without anything happening.
PlayerAuctions in the past with customer service was great, untill they deleted the fucking livesupport. And you can still make 2 Skrill Accounts bro, I literally just have a VPN up + I've got 4 skrill accounts.