25 is the maximum you can get from the daily regain, and 5 is also the max a day. To get more, you have to convert extra credits to speakers at the store.
That's all a surprise only the dev's and support would know and head support, maybe moderators too. Things are better as surprises most off the time any way
"No solid news on that front yet, we would likely put something in the forum if any updates were to be released, but not yet at the moment." - Support that is regarding The new dorms and or t6.