The last time this happened to me, it went like this............ "Hey, I want the new DirecTv customer package because I only have NFL Sunday Ticket and nothing else....so I never had a DirecTv package". No PIZ (in a foreign accent) you cannot get any special offers because you are considered a DirecTv customer, even though you never had a DirecTv package. "I guess DirecTv doesn't care about adding another customer to their packages, then?". Sir Mr. PIZ, would you like to cancel? "Yes, cancel my subscription". Done.
............................ 1 month later........... in the mail....... A letter from DirecTv saying "We want you back. Here is this amazing deal. Free HBO / Showtime / Cinemax for 1 year. Free NFL Sunday Ticket".
Hoping that happens again.