She might face a water cut - no more showers or using the tap water for cooking. It would be a real inconvenience, especially considering how often she might need to clean up after all her adventures in Forks.
The consequence could be that she has to pay a late fee. In many fanfics, there are rules similar to real life. If she forgets to pay the water bill, she'll probably get a notice first, and if she still doesn't pay in time, there will be an additional charge. This could put a strain on her finances, especially if she's not well - off in the Twilight - inspired world of the fanfic.
This situation can add an interesting twist to the plot. It makes Bella seem more human and relatable. We all forget things sometimes. It could also lead to some comical moments, like her trying to figure out how to get the water back on in a hurry. Maybe it forces her to interact with people she normally wouldn't, which could introduce new sub - plots or character developments. For example, she might have to deal with a grumpy water company employee, and that could be a whole new side - story in the fanfic.
It could be that a neighbor mentions it to her. If her neighbor has also received their water bill and they are chatting, the neighbor might say something like 'I just paid my water bill, did you pay yours yet?'. And this would make Jessica remember that she completely forgot about paying the water bill.
If they were using the SARFT's internet, they would have to pay for the television. This was because the SARFT's internet and television used different channels to transmit signals. They were two different services and had to be paid separately. If they used the internet, it was usually included in the package. If they didn't give it away, they would be charged a monthly fee. Whether or not they needed to pay for the TV depended on the user's choice of the cable package and the service supplier's policy. Generally speaking, a cable package would include internet access, but not necessarily television service. If the user only needed internet service and not television service, they would only need to pay for the cost of the internet. Therefore, whether or not to pay a TV fee depended on the user's choice of the service and personal needs.
Mustang isn't based on a true story. It could be a blend of imagination and common themes, but it doesn't draw directly from real-life events. Usually, such works are crafted to entertain and engage the audience through fictional scenarios.
There were generally two ways to pay for reading novels on a mobile phone: one was to deduct the phone bill directly from the balance of the phone bill, and the other was to log in to the account of the novel website and make the payment. The specific method depended on the novel website and payment method.