Competitions and giveaways
Everyone loves a good competition, especially at Christmas. They benefit your customers, who get a shot at something for free, while also providing your business with increased brand engagement. The festive period provides you with an opportunity to run an advent calendar or "12 days of Christmas" type giveaway, where you provide customers with a daily incentive or competition entry. You could run these campaigns via your website and then send SMS reminders to your customers to encourage them to take part. Or, you could include a landing page survey in your SMS message that allows your customers to enter your competition directly.