I'm also having a problem with this. I don't know whether this is a bug or new features but I've noticed that yesterday I have to pay an upkeep for 4 mill and I've settled it all completely and it shows 0 upkeep for my PI. Suddenly today, I saw that I need to pay twice the amount for my upkeep. I thought this is new amount for PI upkeep but I've noticed that it still 300k++ daily. Can you please check on this.
Thanks.