hi cat here
Mine took a day for them to reactivate the other account. Bear in mind though that I think it is a privilege that they allow you to reactivate with a plex like that, not a right. The company I work for would not be so kind tbh.
Your skill training lasts 72h after account deactivation, so worry about it when it starts getting to that point.
What information did you give in your petition? Mine said basically this
The account name [login_name] has expired. I have contracted a PLEX to the character X on that account from this account and character Y. I'd be very grateful if you could grant me enough time to apply the PLEX.
Give them all the info they need without them having to dig around, so when they do get around to it they can deal with it better.
As a side note, when the GM replied 'i have added a day to your a account', it showed up in the account management, but once the plex was applied it was 30d, so you don't get a free day out of it at all. Not complaining, just wanted to point it out.