Cancelled trade which I received

To me They offered these things to me:
  • Pet 2009-12-20
    Rare
  • Pet 2010-07-26
    Uncommon
  • Pet 2011-01-31
    Very rare
  • Pet 2011-12-24
    Very rare
  • Pet 2013-12-18
    Very rare
  • Pet 2017-12-18
    Rare
From me They wanted these things in return:
  • Pet 2017-12-18
    Very rare