After its Super Bowl offer earlier this week, Mint Mobile has unveiled a new promotion that can be purchased exclusively at Best Buy. This isn't the first time Mint Mobile unveiled this Best Buy-exclusive offer. They previously made this offer available in November 2019. But in case this is the first time you're hearing about it, you can get their 3-month plan for $30 instead of $60. This plan comes with unlimited talk, text, and 8GB of 4G LTE data. Here's the kicker: the offer is available for one day only. Meaning, it will expire by the end of the day. But the good news is, the T-Mobile MVNO still has plenty of other deals available on Best Buy. You can check out the options here.