We're sincerely sorry if you were incorrectly invoiced! We'd be happy to investigate with our team to see what happened here.
If you were incorrectly invoiced, please reach out to us to let us know which books you were charged for, and which books you actually ended up keeping. We'll get in contact with our warehouse team to investigate, then issue refunds for any charges that were made in error.
To remedy an incorrect invoice, reach out to us here.