Mint Mobile 12GB 3 month plan for $30!

https://slickdeals.net/f/13720640-mint-mobile-3-month-prepaid-sim-card-kit-12gb-for-30

That's $10/mo, cheaper than Tello's $2 first month then $14 for 2nd and 3rd month with only 2GB data.

Get from Best Buy... does this mean we still have only 45 days from purchase at BB to activate?