Sorry to hear about your experience. There are no shortcuts to getting a Biewer.
Sounds like you were sold a "splitter" Yorkie that allegedly would produce Biewers?? Never a guarantee. If you want to email the pedigree I will be happy to review it for you and advise you.
dee@houseofwags.com is the email address.
Make sure to file complaints with BBB, Attorney General, etc. where this Breeder does business.