Comcast Cable Communications, LLC, doing business as Xfinity, is an American telecommunications company and division of Comcast Corporation used to market consumer cable television, internet, telephone, and wireless services provided by the company.
Xfinity uses a direct mail letter as part of its upsell campaign to existing customers in the Miami, FL area to get Xfinity Flex - a 4K streaming TV box with their Xfinity Internet. Xfinity includes multiple ways to take advantage of the offer via a phone number or custom URL. The campaign was sent in both English and Spanish.
Source: Who's Mailing What!

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