Is the cash you get when you sign up for the Internet almost the same every day?

pu1. It doesn't change well during the day, but it changes every day

2017-10-20

OK

pu2. It changes quite often

2017-10-20

OK

pu3=뿌2. Usually, you pay the least at the beginning of the month and it keeps going up at the end of the month

2017-10-20

OK