Re: is there a fixed day/time sims get bills?
@IrisuChan my Sims usually get their bills on a Monday morning, before 10am. But if I'm playing them on a different lot it can get a bit random. I have Sims that work overnight fishing or sleeping/working at their retail lots and it affects them. The bill usually arrives in the middle of the night for them but it will be for the correct amount. If I'm at their home lot but they are at work for example, it works as it should.
The problem with bills being higher while on vacation is happening in my game too but that one only happens for me when on vacation, not when just at another lot. Any vacation lot can result in a bigger bill for me even if it's smaller than the home lot or even if they are camping for example.
Here's the bug thread for you:
https://answers.ea.com/t5/Bug-Reports/OPEN-Very-High-Household-Bills-While-On-Vacation/m-p/8243899