It's a Sprint Total Equipment Protection promo that gets through your phone via text message.  Don't know how they got my phone number.  Costing me my units.  Their URL is www.tepdl.com.  Then the URL redirects you to another page: http://www.tepdl.com/crumpet/spt_unsupported_device.html.  Nuisance!!  {~%^#?@*&$^#