I just wrote a ticket and actually was asked the reason why I would like to have 4days
(which implied to me that with a solid reason, there is a yes)
so the most logical reason that instantly came to my mind was, to see what has changed in the game and how my guild progressed and if this is all okidokey I would resub.
answer of the GM: That I could login with a char below lvl 20 and see how the game is doing (not really for the content above 20 but yolo) and also make use of the guild chat. Okay.
My answer then was as sharp and as precise as possible: That with the right reason I would have just received 4 days of free game time. But the individual mind of the GM just said no to his particular reason I gave him.
GM: Have a nice day (real meaning: Yes you are correct but I am not allowed to tell you)
Rofl...
So, in your mind - maybe even coming from a direct experience: What is the Reason for GMs to give away 4day free gametime?