My cycle ends every 25th of the month. I usually get the SMS notification of my bill at the 28th. So my question is, is this bill for the end or the beginning of the month? For example, if I receive the bill on November 28, is this for the October 26 - November 25 cycle?
You always pay for the next month in advance, and any overages from the past month.
So your November 28th bill will be your plan for Nov 26 - Dec 25 and any overages from Oct 26 - Nov 25. (These dates can be found on your pdf ebill)