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Its only good for a month/30days. As far as I know you cannot buy something that keeps the data for longer. No Rollover either.
Sorry, there was a problem. Please try again later.It carries over until it is gone.
Sorry, there was a problem. Please try again later.Depends on the expiration date on the card. Lower-priced cards have a 30-day expiration while, for example, the $25 card has a 90-day expiration. So, if you buy a $25 card, you'll have that to use for the next 90 days. If you don't use it all, and you buy another card, then what you didn't use is added with the new card. Let's say you have $10 left after 90 days and buy another $25 card. Your total balance, then, will be $35, available over the next 90 days. As for hotspots, I can't answer that question since I don't use them.
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