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Make sure you have registered to SwiftText. If so, SwiftText will send you a message code. You can use that message code to opt-in customers.

Ask your customers to SMS 636-206-3242 and use your message code to opt-in.  Display 636-206-3242 and your message code in your site, office, work place, or social media.

Example: If you message code s 3598, display: