This is a brand new freebie offer from Sonic. Sonic is a place where you can get a great slush. Not only that, you can get a free one! When you download the Sonic rewards app, you’ll get an offer that’s redeemable for a free slush. Just don’t get too excited and drink it fast or you may risk a killer brain freeze. Keep in mind that this offer will take about 8 weeks to arrive. Also, this offer will only last as long as the company has supplies, so get yours while you can.
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