Pretty sure it's them, was all over the news a while ago.
Banning people abuse the return system is a given, good for the rest of us, but deleting stuff people paid for is just wrong. If I were to pull some shenanigans and get myself to be banned from Walmart or Costco, it's not like they are going to come with a repo truck and take back everything I bought from them.
Just a good reminder to not buy any digital content you can't actually own (i.e. DRM free, or crack DRM and make local backup).